Which statement explains how the bands in the crystal of a metal are like atomic orbitals?
A. They both have localized electrons that orbit specific atoms.
B. They both involve ionization of some atoms so bonding can occur.
C. They both have delocalized electrons that move from atom to atom.
D. They both allow electrons to move from lower energy levels to higher energy levels.

Answers

Answer 1

Answer:

D

Explanation:

Correct On EDU

Answer 2

Crystal lattice of metals are highly ordered in which the ions and electrons are arranged in a stoichiometric proportion. But,electrons can excite to higher energy levels as they fo in atomic state. Thus , option D is correct.

What is crystal lattice?

Crystal are highly ordered structures of solids and is anisotropic in nature with a perfect geometry and crystal lattice units. There will be free electrons present in the interstices spaces and which can be delocalized throughout the lattice results in conduction.

Electrons can acquire energy to excite to the higher energy levels from the lower energy level in a crystal lattice. Electrons are revolving around the nucleus of an atom through definite circular paths of fixed energy.

Electrons in an atom tends to excite to higher energy levels and then will return to the lower energy level by emission of energy in the form of light or heat. This process make the element coloured and conducting as in the case of crystal bands in metals.

Hence, both atoms and metal lattice allow electrons to move from lower energy levels to higher energy levels and option D is correct.

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Related Questions

What do hydrologists primarily study?
O A. Stars
O B. Rocks
O c. Water
O D. Weather

Answers

hydrologists primarily study water, i think

Using the periodic table, complete the table to describe each atom. Type in your answers
A
B
C
D
E
F

Answers

Answer:

A. 20 B.40 C. Ca D. 10 E. 9 F. F

Explanation:

Answer:

A.) 20

B.) 40

C.) Ca

D.) 10

E.) 9

F.) F

Explanation:

just did it on edge 2020 & got it correct....

What does the mass of an object depend on?

Answers

Answer:

the mass of an object depends on inertia greater is the inertia greater will be the mass or vice versa

Explanation:

hope it help ^_^

Mass is the most basic property of matter and it is one of the fundamental quantities. Mass is defined as the amount of matter present in a body. The SI unit of mass is the kilogram (kg). The formula of mass can be written as:

Mass = Density × Volume

The mass of a body is constant; it doesn’t change at any time. Only in certain extreme cases when a huge amount of energy is given or taken from a body, the mass may be impacted. For example, in a nuclear reaction, a tiny amount of matter is converted into a huge amount of energy, this reduces the mass of the substance.

There are various units for calculating mass, like, kilograms, grams, lbs, pounds, etc., but the SI unit of mass is "kilograms" or kg. Every unit of mass can be converted to other units by using a proper conversion formula without affecting the meaning and essence of the quantity to be measured.

HENCE,MASS OF AN OBJECT DEPENDS ON:

size of an atom or moleculesAnd number of atoms and molecules of the body.

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HELP PLEASE!!
Calculate the mass in grams of an object whose volume is 67.8 mL and whose density is 7.25 g/mL

Answers

Answer:

The mass of the object would be 491.55g/mL. Hope this helped! :)

Explanation:

D= 7.25g/mL                                                           M=D•V

V= 67.8mL

M=7.25g/mL•67.8mL

M= 491.55g

how do I solve for V1 in this equation ​

Answers

Answer:

[tex]V_{1} = \frac{P_{2}V_{2}T_{1}}{P_{1}T_{2}}[/tex]

Explanation:

[tex]\frac{P_{1} V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}[/tex]

First of all cross multiply

That's

[tex]P_{1}V_{1}T_{2} = P_{2}V_{2}T_{1}[/tex]

Next divide both sides by [tex]P_{1}T_{2}[/tex]  in order to isolate [tex]V_{1}[/tex]

We have

[tex]\frac{P_{1}V_{1}T_{2}}{P_{1}T_{2}} = \frac{P_{2}V_{2}T_{1}}{P_{1}T_{2}}[/tex]

We have the final answer as

[tex]V_{1} = \frac{P_{2}V_{2}T_{1}}{P_{1}T_{2}}[/tex]

Hope this helps you

describe the trend in viscosity of hydrocarbon fuels

Answers

Answer:

Hydrocarbons are the chemical compound that contain the elements carbon and hydrogen only.

They are compounds that are obtained from the fossil fuel crude oil by a process called fractional distillation.

Matt's cube, after 5 trial, had an average destiny of 7.40. g/cm what is it made of ?​

Answers

Explanation:

5 trial, had an average destiny of 7.40. g/cm

What happens when a Bose-Einstein condensate forms?
A. A large atom is split into many smaller atoms temporarily.
B. The atoms of the solid condense into one large superatom.
C. It causes all matter touching it to condense into a liquid.
D. The electrons separate from the nuclei forming a mass of unbound positive and negative charges.

Answers

Answer:

the answer would be B

Explanation:

The atoms of the solid condense into one large superatom. Hence, option B is correct.

What are atoms?

An atom contains a central nucleus surrounded by one or more electrons.

Bose-Einstein condensation occurs at a temperature very close to absolute zero i.e 273.15 degrees centigrade. Under such conditions, a large quantity of Boson occupies the lowest quantum state, at which point microscopic quantum phenomena become apparent macroscopically.  A BEC is formed by cooling a gas of extremely low density about one hundred thousandth the density of normal air, to ultra-low temperature.

Hence, option B is correct.

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The first record of the scientific method being used was approximately
O A) 600 years ago.
O B) 3,000 years ago.
O C) 50 years ago.
O D) 1.200 years ago.

Answers

Answer:

600 years ago

Explanation:

it was first recorded by England's Sir Francis Bacon (1561-1626)

why are group viia elements very active nonmetals

Answers

I’m not sure what you’re asking but- halogens are among the most active nonmetals due to their electron configuration and number of valence electrons.

WILL MARK BRAINLIEST

7. When the numbers 5.56 x 10^2 and 3.81 x 10^3 are added the result is:
a) 4.36 x 10^3
b) 4.366 x 10^3
c) 4.366 x 10^2
d) 4.37 x 10^3

Answers

Answer:

option b

Explanation:

556+3810

=4366

=4.366*10^3

Hope it helps

Pls mark as brainliest

Look at the picture. Assume that all of these substances are in different containers. In all of
these substances, atoms have combined to form
ions
elements
molecules
mixtures

Answers

Answer:

Elements?

Explanation:

Im not sure but I think its elements because carbon dioxide is, and the others sound like it too

PLEASE HELP The arrows in the chart below represent phase transitions.

Three bars are shown labeled Solid, Liquid, and Gas. They are connected by arrows labeled 1 to 6. Arrow 1 points from liquid to gas; arrow 2 from solid to liquid, arrow 3 from solid to gas, arrow 4 from gas to liquid, arrow 5 from liquid to solid, and arrow 6 from gas to solid.

Which arrows represent the phase transitions in which heat energy is gained?
1, 2, and 3
2, 3, and 5
3, 4, and 5
4, 5, and 6

Answers

1, 2, and 3

hope it helps next time upload with picture

Which statement about the electron cloud model is ttue

Answers

Ya where’s the problem of statement

What are the three types of symbiosis?

Answers

Answer:

commensalim, mutualism, parasitism

Commensalism, mutualism, parasitism

how many energy levels do aluminum, argon and sodium have?
plz help

Answers

Answer:

aluminum - 3,argon - 3,sodium - 3

Explanation:

Which describes a property of water that allows plants to transfer it from their roots to their leaves?
O Water exhibits weak adhesion and cohesion, which allows capillary action to occur.
O Water exhibits strong adhesion and cohesion, which allows capillary action to occur.
Water has low surface tension, which prevents capillary action from occurring.
Water has high surface tension, which prevents capillary action from occurring.

Answers

Answer:

B water exhibits weak adhesion and cohesion which allows capillary action to occur.

Explanation:

took the test

Water exhibits strong adhesion and cohesion, which allows capillary action to occur.

What property of water allows it to move through a plant?

The cohesive properties of water (hydrogen bonding between adjacent water molecules) allow the column of water to be 'pulled' up through the plant as water molecules are evaporating at the surfaces of leaf cells. This process has been termed the Cohesion Theory of Sap Ascent in plants.

What are adhesion and cohesion?

Cohesion and adhesion are two water properties that describe how water molecules interact with each other. and how water molecules interact with other things like leaves or even you. Cohesion means that water likes to stick to itself and adhesion means that water likes to stick to other things.

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What volume is equivalent to 14,000 mm cubed

Answers

Answer:

14mL

Explanation:

1mL = 1cm^3, 1000mm^3 = 1000cm^3

Molding a shape from soft, malleable material (clay or plaster) or constructing a shape from harder material (such as metal or paper). Molding is what a child does with Play-Doh or origami.

Answers

Complete question is;

Molding a shape from soft, malleable material (clay or plaster) or constructing a shape from harder material (such as metal or paper) is called what?

Molding is what a child does with Play-Doh or origami

Answer:

Modeling

Explanation:

In chemistry, we have a branch called modeling chemistry. In modeling, we organize together a series of models instead of a collection of topics. In this approach, we will begin with a phenomena that can be readily observed and are gradually develop the simplest model of matter that helps us make sense of our observations.

Now in the question, we are Molding a shape from soft, malleable materials like clay/plaster or constructing from harder materials like metal/paper. This means that we are organizing a series of models from either soft & malleable or harder materials to produce a simple model shape.

Thus, this is simply modeling.

Which shell is the outermost for oxygen?
A 192
B. 292
C. 252P
D. 2P

Answers

Answer:

D is the answer

pls help!! What volume is represented by each small tick mark? (look at attachment)

Answers

The mark represents a volume of 25ml.

What is a measuring cylinder?

A Measuring cylinder, a graduated cylinder, a cylinder measuring, or a mixing cylinder is a part of various laboratory materials that are used for the measurement of the volume of liquids, chemicals, or solutions during laboratory work.

Graduated cylinders have more precise and accurate measurements than the common volumetric flasks and beakers used in the laboratory. These are of various volumes ranging from small to big.

These graduated cylinders are also used for the determination of displacement. It is a measurement of the change in a volume of water when some additional materials are added to it.

This means that a graduated cylinder can be used for the determination of solid materials by taking the difference between the initial volume of water and the new volume of water.

Therefore, in this case, the mark represents a volume of 25ml.

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Which one would it be?

Answers

Answer:

it would be C! 0.0520 Km

water is 11.19% hydrogen and 88.1% oxygen by mass. Lake superior contains about 1.2x10 kg of water. what mass of hydrogen is contained in lake superior

Answers

Answer:

mass of hydrogen in lake = 11.19% of 12

                                          = 1.3428

check if question is correct or not

Explanation:

Water is 11.19% hydrogen and 88.1% oxygen by mass. Lake superior contains about 1.2x10 kg of water the mass of hydrogen is 1.32 kg

What is mass?

Mass is defined as a unit of measurement that describes the amount of matter that makeup an object.

It can also be defined as quantitative measures of inertia, fundamental properties of all matter. It is a dimensionless quantity.

As given 11.19% hydrogen is present in 1.2 x 10 kg

So, the mass of hydrogen = 11.198 % of 1.2 x 10 kg

                                           = 11.19 / 100 x 12

                                           = 1.32 kg

Thus, water is 11.19% hydrogen and 88.1% oxygen by mass. Lake superior contains about 1.2x10 kg of water the mass of hydrogen is 1.32 kg.

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HELP PLEASE!!!

Which best represents the law of conservation of mass?

A- mass of reactants > mass of products

B- mass of reactants < mass of products

C- mass of reactants = mass of products

D- mass of reactants -> mass of products​

Answers

Answer:

c

Explanation:

the input of the mass is always equal to the mass of the outputs

Answer:

The correct answer is C

Explanation:

I did C like they said and it was correct!

How does a scientist test their hypothesis?

Answers

Answer:

Conducting experiments and using the scientific method.

Explanation:

Scientists (and other people) test hypotheses by conducting experiments. The purpose of an experiment is to determine whether observations of the real world agree with or conflict with the predictions derived from a hypothesis. If they agree, confidence in the hypothesis increases; otherwise, it decreases.

What is the number of protons plus the number of neutrons equal to?
A. atomic number
b. atomic charge
c. atomic isotope number
d.mass number​

Answers

Answer:

atomic number

Explanation:

 The mass number of the atom (M) is equal to the sum of the number of protons and neutrons

a metal rod weighing 123 g with a temperature of 100 c is placed in a 75 ml of water at 25 c if the final temperature of the metal and water is 29 c what is the specific heat capacity of the metal? assume the density of water is 1.0 g/ml and specific heat capacity of water is 4.184 j/g c

Answers

Answer:

What grade r u in

Explanation:

Just bcauz Ima coo dud and 5=5 and 1=1

According to ______Law, if the temperature remains constant, doubling the pressure will _______the volume of the gas.​

Answers

Answer: According to Boyle's Law, if the temperature remains constant, doubling the pressure will halve the volume of the gas.

Explanation:

1. A 205 g sample of H20 at 25.0 °C is heated until the temperature reaches 75.0 °C. How many
Joules of heat were required to do this? (remember c = 4.184J/g • °C)

Answers

Answer:

i really dont know

Explanation:

byeeeeeeeeeeeee

can someone help me please

Answers

Answer:

A

Explanation:

the circles are more tightly packed together in box A than in box B in the same amount of space

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