Can you tell me the Valence Electron of each element?​

Can You Tell Me The Valence Electron Of Each Element?

Answers

Answer 1

Answer:

Lithium oxide.......................

Answer 2

Explanation:

6. magnicium chloride

2.Barium chloride

3. calcium nitride

4. lithium oxide

5. Aluminium sulphide

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Related Questions

helpppp
Chemical bond formation might take place due to the interaction between a(n) _______ and an anion
A.magnetic
B.valence
C.electrostatic
D.cation

Answers

Cation and an anion the differences in charge make them attracted to each other
D. Cation is the answer

fghgfgfgfftftftft ttcc

Answers

Answer:

fghgfgfgftftftftftft ttcc

tehee

Explanation:

Luciana explains to Eric how electricity flows in a circuit. Which sentences are a part of her explanation? Select all that apply.



A. Without a resistor, electricity cannot flow in a circuit.


B. Without a switch, electricity cannot flow in a circuit.


C. For electricity to flow in a circuit, the circuit must be complete.


D. An insulator such as plastic is needed for electricity to flow in a circuit.


E. A conductor is needed for electricity to flow in a circuit.

Answers

I’m pretty sure it c hope that helped

Answer:

E. A conductor is needed for electricity to flow in a circuit.

Explanation:

Electric current can flow without a resistor, as in short circuit.

A short circuit is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance.

Without a switch, electricity can flow in a circuit, switch is only used to close or open the circuit.

Thus, the only correct option is  E

E. A conductor is needed for electricity to flow in a circuit.

Define Each Piece of the Microscope


Describe What Each Microscope Lens Does



Describe How The Microscope Magnification Lens Works

Answers

1) Body tube (Head): The body tube connects the eyepiece to the objective lenses. Arm: The arm connects the body tube to the base of the microscope. Coarse adjustment: Brings the specimen into general focus. Fine adjustment: Fine tunes the focus and increases the detail of the specimen.

2)Microscopes are made up of lenses for magnification, each with their own magnification powers. Depending on the type of lens, it will magnify the specimen according to its focal strength.

3)In simple magnification, light from an object passes through a biconvex lens and is bent (refracted) towards your eye. ... The eyepiece lens usually magnifies 10x, and a typical objective lens magnifies 40x. (Microscopes usually come with a set of objective lenses that can be interchanged to vary the magnification.)

The element found in Group 13, Period 2 is ______ a- Al b- Be c- B d- Mg

Answers

c- B which is Boron...

How do clastic sedimentary rocks form?



Solid chemicals in water harden and form rocks.



Fragments of rock are squeezed and cemented together.



Lava cools and hardens into rock.



Plant and animal remains are squeezed and cemented together.
Plz help I give the brainlyest

Answers

Answer: solid chemicals in waterharden and form rocks

Explanation:

Answer:

Fragments of rock are squeezed and cemented together.

Explanation:

I took the test and got the answer below:

How do homes lose thermal energy?
I need TWO reasons on why we want to reduce the thermal loose.​

Answers

Answer:

Poorly insulated attics, windows not being insulated in the winter

Explanation:

One reason is so we do not get cold in the winter and the reason we have a home is to protect us from the weather or put a shelter above us. Second reason is so we don't get hypothermia in the winter time.

What are the two main types of cells, and how do we classify them?

Answers

Answer:

eukaryotic, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.

Explanation:

Answer:

Eukaryotic and prokaryotic

Explanation:

Eukaryotic cells contain a nucleus and prokaryotic cells do not

Question 4 (4 points)
Special bonds formed because of electrostatic interaction between molecules are called

A.intermolecular forces
B. intramolecular forces
C.permanent forces
D.magnetic forces

Answers

Answer:

A. intermolecular forces.

Intermolecular force hope it helps

a sample of alcohol has a density 0.82 g/ml.what is the mass of 5500 mL of the alcohol

Answers

Answer:

The answer is 4510 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

density = 0.82 g/mL

volume = 5500 mL

We have

mass = 0.82 × 5500

We have the final answer as

4510 g

Hope this helps you

What colors are the fireworks in the photo? How do you
think the matter and energy of fireworks of different colors are similar and
different?

Answers

Answer:

Shortly after, the electron will fall back down to a lower energy level, releasing energy in the form of light. Therein lies the key to colorful fireworks!

The matter and energy of fireworks simply rely on the flow of electrons from the ground stage to the excitatory stage.

What is Matter?

Matter may be defined as any sort of substance that is constructed of numerous types of particles that occupy physical space and possess inertia. In simple words, matter may be characterized as anything which occupies space and has mass.

When the electrons move from the ground stage to the excitatory stage, they require a significant amount of energy in any form. But when they fall back to the ground stage from the excitatory stage, they liberates energy.

The same principle is applied in the colorful observation of fireworks. The stored energy is released and different colors of fireworks become visible.

Therefore, the matter and energy of fireworks simply rely on the flow of electrons from the ground stage to the excitatory stage and vice-versa.

To learn more about Matter and energy, refer to the link:

https://brainly.com/question/23490755

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(PLS HELP will mark brainliest!) Compare and contrast the alkali metals and the alkaline earth metals. Discuss their physical and chemical properties, their magnetic properties, and their electron configurations.

Answers

Answer:

I have a picture from my excerpt that basically answers all of that!

Hope it helps!

Explanation:

The attachment

The alkali metals and alkaline earth metals has different physical and chemical properties due to difference in their valence electrons.

Comparison of physical and chemical properties of alkali metals and the alkaline earth metals.                       Alkali Metals                             Alkaline earth metals

·Electronic      [Noble gas]ns1                                  [Noble gas]ns2

configuration

·Reactivity      Comparatively more reactive     Comparatively less

                                                                         reactive                        

·Hardness       Soft and can be cut by sharp     Comparatively harder

                      knife

·Valency         One valence electron               Two valence electron

·Ionic charge   +1                                              +2

To learn more about Alkali Metals and Alkaline earth metals here.

https://brainly.com/question/18722874

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Why do acids and bases neutralize eachother?

Answers

Answer:

Explanation:

When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water. The compound formed by the cation of the base and the anion of the acid is called a salt.

explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps

Answers

The balance of chemical equation : 2KClO₃ ⟶ 2KCl + 3O₂

Further explanation  

Equalization (balance) of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

Reaction

[tex]\tt KClO_3\Rightarrow KCl+O_2[/tex]

1. Coefficient

KClO₃ ⟶ aKCl + bO₂

2. Equation

K ⇒ left =1, right=a ⇒a=1

Cl⇒ left =1, right=a ⇒a=1

O ⇒ left = 3, right = 2b ⇒3=2b, b = 1.5

The equation turns into :

KClO₃ ⟶ KCl + 1.5O₂

multiplied by 2

2KClO₃ ⟶ 2KCl + 3O₂

What happens if an organism cannot carry out its life function?

Answers

Answer:

organisms cannot stay with out getting nutrients as they will not be able to repair them selves or produce energy.

Explanation:

Explain the difference between potential energy and kinetic energy.



Sentence Starters

"Potential Energy is. . "

"Kinetic Energy is. . "

"The difference between potential energy and kinetic energy is. . ."

Answers

Answer:

Potential energy is the stored energy in an object or thing, while kinetic energy is the energy which an object contains because of a particular motion.

Explanation:

Potential energy is energy that is stored for example a wind up toy, it has energy but in order for you to get kinetic energy, it has to move. So kinetic energy is moving energy.

The difference is that potential is stored and kinetic is moving energy.

Which best explains why making a pancake from batter is an example of a chemical change?

The pancake that forms is a different state of matter.
The change from batter to pancake can be reversed.
A new substance forms when the batter is cooked.
The batter changes shape when it is cooked.

Answers

Answer:

the correct answer is C. A new substance forms when the batter is cooked

Explanation:

I got it right on edge 2021. Hope this helps

which in the following best describe carbon
a high density
b. ductile
c. Conductive
d. brittle

Answers

i just know it’s not conductive or brittle
I think the answer is brittle

tectonic plates move to ​

Answers

Answer:

I don't really understand, but here is my answer:

Tectonics plates can move back and forth, side to side, and into each other which causes earthquakes.

Hope this helps!

Sky

When Tectonic plates move it’s causes earthquakes and can trigger tsunamis

3. Except for the bolt, note the difference between the calculated volumes and the volume
found by the displacement method. Which method is more accurate? Why?

Answers

Answer:

Yes Because the calculated volume is more accurate because you are able to measure the smaller dimensions.

~Apex lab

11) Identify the number of elements and the number of atoms present in the chemical formula. NaHCO ²
4; 6
5; 6
4,5
3; 5​

Answers

Answer:

4;6

Explanation:

because there are four elements

the answer will be .. A . 4;6

I think colloids are
heterogeneous
because ____________
___________________​

Answers

the particles do not dissolve completely..

Contains elements carbon, hydrogen and oxygen, the empirical formula of butanedion is C2H3O and its molar mass is 86.09% find its empirical formula

Answers

Answer:

Molecular formula = C₄H₆O₂

Explanation:

Given data:

Empirical formula of butanedion = C₂H₃O

Molar mass of  butanedion = 86.09 g/mol

Molecular formula  butanedion = ?

Solution:

Formula:

Molecular formula = n(empirical formula)

n = molar mass of compound / empirical formula mass

empirical formula mass  = 2×12 +1.008×3 +1×16 = 43.024

n = 86.09 / 43.024

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₂H₃O)

Molecular formula = C₄H₆O₂

Mr. Bullis wants to know if he gives teachers candy, it will make them smile more. He gives half the teachers candy and the other half get nothing. He then records the number of times the teachers smiled.

Experimental Group:

Control Group:

Answers

Answer:

the experimental group would be the teachers who recieved the candy

control group would be the teachers who dont get any candy

Explanation:

experimental group is the group that receives the test variable being tested in this case the variable being the candy

and the control group is the group who doesn't receive the variable

purpose of having a control is to rule out other factors which may influence the results of an experiment.

HELPP PLEASE
Isotopes have different number of........... *

Protons
Electrons
Neutrons
Protons and Neutrons

Answers

Answer:

neutrons. they have the number of protons and electrons

Neutrons because neutrons are neutral so this means the element doesn’t change

Water is the ideal medium to have within our bodies BECAUSE it facilitates chemical reactions. a Both the assertion and the reason are incorrect. b The assertion is incorrect, but the reason is correct. c The assertion is correct, but the reason is incorrect. d The assertion and the reason are both correct, but the reason is invalid. e The assertion and the reason are both correct, and the reason is valid.

Answers

Answer:

The answer is D

Explanation:

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A 2.3 kg object has 15 ) of kinetic energy. Calculate its speed.
O A. 0.12 m/s
OB. 1.1 m/s
O c. 2.4 m/s
OD. 3.6 m/s

Answers

Answer:

The answer is option D

Explanation:

To find the speed given the kinetic energy and mass we use the formula

[tex]v = \sqrt{ \frac{2KE}{m} } \\ [/tex]

where

m is the mass

v is the speed

From the question

KE = 15 J

m = 2.3 kg

We have

[tex]v = \sqrt{ \frac{2 \times 15}{2.3} } = \sqrt{ \frac{30}{2.3} } \\ = 3.61157559...[/tex]

We have the final answer as

3.6 m/s

Hope this helps you

HELP ASAP
Which of the following is NOT a factor in conduction?
A. Temperature difference
B. Fluid flow
C. Surface Contact
D. Cross sectional area

Answers

B:Fluid Flow because fluid flow is how convection heat is transfered

What is the average atomic mass of a sample containing three Lithium-6 atoms and two Lithium-7 atoms?​

Answers

Answer:

3

Explanation:

What are the two general properties that define matter?

Answers

Answer:

Matter can be defined or described as anything that takes up space, and it is composed of miniscule particles called atoms. It must display the two properties of mass and volume.

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