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Alenkinab [10]
3 years ago
5

As the elements of group 16 (VIA) are considered from top to bottom on the Periodic Table, the atomic radii

Chemistry
1 answer:
mina [271]3 years ago
4 0
For group 16 elements, the atomic radii increases  down the group as a shell of electron is added on each time.
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12. Electrons in the first energy level have the least amount of energy.
ludmilkaskok [199]

Answer:

True

Explanation:

Electrons that are in the first energy level (energy level 1) are closest to the nucleus and will have the lowest energy. Electrons further away from the nucleus will have higher energy. An atom's electron shell can accommodate 2n2 electrons, where n is the energy level.

6 0
3 years ago
The term “ average atomic mass “ is a ______average so is calculator different Lee from a normal average
hoa [83]

Average atomic mass of an element is a sum of the product of the isotope mass and its relative abundance.

For example: Chlorine has 2 isotopes with the following abundances

Cl(35): Atomic mass = 34.9688 amu; Abundance = 75.78%

Cl(37): Atomic mass = 36.9659 amu; Abundance = 24.22 %

Average atomic mass of Cl = 34.9688(0.7578) + 36.9659(0.2422) =

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Thus, the term “ average atomic mass “ is a <u>weighted</u> average so it is calculated differently from a normal average

3 0
3 years ago
Which of the following is the best example of potential energy?
AveGali [126]

Answer:

A car stopped at the top of a hill

Explanation:

Potential energy is the energy that is stored in an object due to its position relative to some zero position.

therefore, the answer is the first option

=> A car stopped at the top of a hill

hope this helps and is right :)

3 0
2 years ago
Read 2 more answers
In the reaction of sodium and oxygen, which atom is the reducing agent?
pishuonlain [190]
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8 0
3 years ago
What quantity is ph a measure of
marusya05 [52]

Answer:

The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.

8 0
3 years ago
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