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Chemistry

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Angus Koepp

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Cards in this guide (8)
What is the photoelectric effect

Apexvs.

Electrons are knocked off atoms, causing electricity to flow.

What group is Zn in

Group 12

Which electrons are the valence electrons of the atom

The correct answer is: The electrons farthest away from the nucleus...

chris ellis

Why are elements in the tall columns of the periodic table called representative elements

They follow a pattern for valence electrons.

What does the group number of A elements in the AB numbering system tell about valence electrons

all the elements in group A has the same number of valence electrons

What does adding a neutron to an atoms nucleus do to the atoms mass

we can not add neutron

What period is Zn (zinc) in

12

Na-23 has 12 neutrons what is its atomic number

11

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