Chemistry High School

What neutral element has the electron configuration described by the Aufbau diagram above.​

What Neutral Element Has The Electron Configuration Described By The Aufbau Diagram Above.

Answers

Answer 1

Answer:

Aluminium.

Explanation:

The above electronic configuration can be written in a simplified form as shown below:

1s² 2s²2p⁶ 3s²3p¹

Next, we shall determine the number of electrons in the atom of the element as follow:

Number electron = 2 + 2 + 6 + 2 + 1

Number of electron = 13

Next, we shall determine the number of protons.

Since the element is in its neutral state,

The number of electrons and protons are equal i.e

Proton = Electron

Number of electron = 13

Proton = Electron = 13

Proton = 13

Next, we shall determine the atomic number of the element.

The atomic number of an element is simply the number of protons in the atom of the element i.e

Atomic number = proton number

Proton = 13

Atomic number = 13

Comparing the atomic number of the element with those in the periodic table, the element with the above electronic configuration is aluminium since no two elements have the same atomic number.

Related Questions

please, please, please help! this assignment is due in a few mins and idk what to do. I will mark the first/best answer brainliest! Why do substances exist as a solid, a liquid, or a gas?

Answers

Answer:

Explanation:

The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid or solid

Describe to me the difference on an
atomic/particle level between a Solid and a Gas.

Answers

Particles in a: gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.!

Which event always involves a chemical change A boiling B melting C conducting D burning

Answers

The answer is Burning

Answer:

burning

Explanation:

When a chemical change occurs, the matter is transformed into a new substance. When a substance is burned, it will change into something new. Thus, you know that burning is a chemical change. All the other options are physical properties. The substances may change state, but they will not change identities.

- I took the quiz and got 100%

Hope this helps!

Does modern industrial agriculture have a sustainable future?

Answers

Answer:

No. The aim of modern agriculture is to make a profit and be a continuing business not be sustainable to the planet. GMOs, pesticides, herbicides, monoculture, tillage, antibiotics

Explanation:

2. Heat is:
A. thermal energy
I B. infrared radiation
C kinetic energy
D. molecular movement.

Answers

A. Thermal energy good job
The answers will have to be A

Is cobalt 60 more dangerous than bananas ( potassium 40) and why ?

Answers

Answer:

To the best of my knowledge, it is because of the amount of gamma rays is given off.

Explanation:

While both are isotopes, Potassium 40 gives off fewer gamma rays compared to Cobalt 60. Potassium 40 isn't really harmful to humans, but Cobalt 60 (I believe) is used in chemotherapy.

Which property refers to how a mineral reflects light?

Answers

Luster is how the surface of a mineral reflects light. It is not the same thing as color, so it crucial to distinguish luster from color. For example, a mineral described as “shiny yellow” is being described in terms of luster (“shiny”) and color (“yellow”), which are two different physical properties.

Answer:

It is definitly Luster

Explanation:

How shiny something is or how its acts in the sun

HURRY I WILL GIVE BRAINLIEST Which would be a common-sense practice in a lab environment? keeping quiet about accidents washing hands before the lab taking a water bottle to drink scratching one’s face during the lab

Answers

Answer:

washing your hands before the lab

Yea I would agree that washing your hands before the lab is the correct answer. Since you may have germs or chemicals from products on your hands and it may contaminate the experiment.

The power to conduct elections is what type of power

Answers

Answer:

Unlike delegated powers, they are not listed specifically, but are guaranteed by the Tenth Amendment: "The powers not delegated to the United States by the Constitution, not prohibited by it to the States, are reserved to the States respectively, or to the people." Some traditional reserved powers include regulating ...

Explanation:

SER
In which direction does the Sun appear to move across the sky?
from west to east
O from east to west
O from north to south
from south to north

Answers

Answer:

east to west is the answer

East to west
Hope this helps

Which of these is a property of a substance that is composed of atoms that are held together by metallic bonds?
It has a low melting point.
It can be flattened and bent.
It cannot be shaped into wires.
It does not conduct electricity.

Answers

Answer:

B: it can be flattened and bent

Explanation:

Metals are malleable and can be flattened. Metals are ductile and can be deformed and bent.

Metals are bonded together by metallic bonds.

Hence a substance that is composed of atoms that are held together by metallic bonds can be flattened and bent.

The property of a substance that is composed of atoms that are held together by metallic bonds is  it can be flattened and bent

What is metallic bond ?

Metals are malleable, ductile substance can be deformed when it is bent down, theses are bonded by metallic bond and can be flattened.

The metallic bond is a force of attraction which is responsible for holding the atoms together,  releases electrons to achieve the configuration of a noble gas.

in this type of bonding all the atoms lose their electrons from their outermost layers that move more or less freely between them, forming an electronic cloud

The metallic bond is the exceptional bond where the electrons are not present exclusively between a pair of atoms, but these are relocated among millions of them  called as  "sea of ​​electrons"  by cohesive bond.

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What is the mass number of beryllium

Answers

Answer:

9.012182 u

Explanation:

The answer would be 9

which of the following substances does not conduct electricity
a)brass b)copper c)carbone(graphite) d)carbon(diamond)

Answers

Answer:

diamonds

Explanation:

Diamond does not conduct electricity.  

• A form of carbon in which each of the atom of carbon is joined to four other atoms of carbon, giving rise to a giant covalent composition is a diamond.  

• Due to this, diamond is very robust and exhibits high melting point. Thus, is used to cut tools.  

• Diamond does not conduct electricity, due to the absence of delocalized electrons in the structure.  

Thus, diamond does not conduct electricity. Option d is correct.

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Questions
1 Describe two ways in which sodium chloride is different from sodium
frorent from chlorine
chlorine​

Answers

Answer:

The compound composed of these ions exhibits properties entirely different from the properties of the elements sodium and chlorine. Chlorine is poisonous, but sodium chloride is essential to life; sodium atoms react vigorously with water, but sodium chloride simply dissolves in water.

How do you know when a boy likes you? A. He talks to you a lot B. He is mean to you C. He hugs you a lot D. He tries to take your stuff from you

Answers

Answer:

I feel it would be C or D but more likely to be D

Explanation:

Answer:

I guess it is A he talks to u alot but boys are different so it could be each one u know?

2. How many kilometers are in 8432 meters?

Answers

Answer:

8.432 Kilometers

Explanation:

This is the answer because 1 kilometer equals to 1,000 meters:

1) Divide 8432 with 1,000

2) Once you divide, you will get 8.432 as your answer

Hope this helps!

If the density of a gold coin is 19.3g/cm3, what would be the density of the coin if you cut it in half?

Answers

Answer

19.3 g/cm3

Step-by-step-explanation

What is the Thermal Energy?​

Answers

The answer is removed hope this helps!

Answer:

Thermal Energy is a certain type of energy that Heats.

Explanation:

"Thermal" is derived from "Thermo" which means heat.

What is the volume of as sample that has a mass of 40.0 g and a density of 4.30 g/mL?

Answers

Explanation:

density = mass/volume so volume = mass/density = 40/4.30

The anther of flower contains​

Answers

Answer:

here is your answer please mark me as brainlist

Explanation:

Answer # Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. Anther: The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma.

how many bonds are broken during in CH4

Answers

There must be 4 bonds broken.

What is the formula for potassium nitrate?

Answers

It depends on which manner the formulae is being asked but the answer is: KNO3

Which of these can be described as a system of stars, gases, dust, and other matter that orbits a common center of gravity?
A.) nebula
B.) asteroid
C.) galaxy
D.) planet

Answers

The answer would be C. Galaxy.

The galaxy is defined as a system of stars, gases, dust, and other matter that orbits a common center of gravity. Thus the correct option is C.

What is a galaxy?

A galaxy is generally defined as the massive collection of billions of stars with their solar systems, gas and dust all guarded together by the center of gravity.

It is in the planet earth which is the part of our solar system we all live. The solar system is found to be the part of the galaxy called Milky Way. Our milky way galaxy also contains a supermassive black hole in the center.

There are several types of galaxies which are present in different shapes. Some of them are found to be in spiral shape and some other galaxies are seen as oval shaped and they are known as elliptical galaxies.

There are also some galaxies with irregular shapes and they are seen as blobs. It is the stars that are present inside each galaxies produces light and this massive system comprising of stars, dust gases and the matter are held by the gravity.

Thus the correct option is C- galaxy.

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standard units of measure for density

Answers

Answer:

g/cm³ for solids,

g/ml for liquids

g/L for gases.

Explanation:

Though SI unit of density is kg/m³, for convenience we use g/cm³ for solids, g/ml for liquids and g/L for gases. Mathematically, density is defined as mass divided by volume:   ρ=m/V    

​

The nucleus contains protons and neutrons true or false?

Answers

Answer:

the answer is

it's true

Answer:

true

Explanation:

it has both neutrons (neutral) and protons (positive)

Suppose 10 atoms of carbon (C) react with 20 atoms of oxygen (O). According to the Law of Conservation of Matter, how many atoms will there be in the product of this reaction?(1 point)
A) 20

B) 15

C) 10

D) 30

Answers

Answer:

D 30

Explanation:

whenever there is a reaction, the amount of atoms don't change, because matter can't be created or destroyed. Add the carbon and oxygen atoms together

According to the Law of Conservation of Matter, there will be 30 atoms of product in the reaction.

LAW OF CONSERVATION OF MATTER:

The law of conservation of matter states that matter can neither be created nor produced in a chemical reaction.

This further means that the amount of matter in the reactant of a reaction must equate that of the products.

Hence, if 10 atoms of carbon (C) react with 20 atoms of oxygen (O), there will be 10 + 20 = 30 atoms of product in this reaction.

Therefore, According to the Law of Conservation of Matter, there will be 30 atoms of product in the reaction.

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Atoms contain positive, negative, and neutral. what happens when two positively charged particles are close together?
A.They repel each other
B.They cancel each other
C.They attract each other
D.They have no effect

Answers

Answer:

they repel each other

Explanation:

A is the ans

A. They repel each other

Can someone help me with science

Answers

Answer:

yess...

follow me and mark me brainliest

Answer:

Yess

Explanation:

Ask your question please.

Which of the following is an element? aluminum bronze table salt brass

Answers

Aluminum is an element :)

Answer:

Aluminum is an element

Explanation:

Aluminum is the most abundant metal in the earths crust with an atomic number of 13.

*
Which of the following is classified as an element?
a. H20
b. Carbon
c. all of the above
d. Tea

Answers

Answer:

c is the answer because everything is an element

the answer would be B because tea isn’t one and h2o is a combination of elements
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