Chemistry Final Review Part 1 Periodic Table

Front

What is the maximum number of electrons possible in the valence layer of most elements?

Back

8

Front

What do elements in a family (column) of the periodic table have in common?

Back

Valence electrons

Front

If some helium atoms have 3 neutrons, what is the atomic mass?

Back

5

Front

What is the atomic number of helium if it has 3 neutrons?

Back

2

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an element will react chemically with other elements.

Front

What is the periodic law?

Back

The properties of elements are a periodic function of their atomic numbers.

Front

What is a Bohr model?

Back

A diagram that represents the arrangement of electrons in an atom.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons.

Front

What are isotopes?

Back

Atoms of the same element that have different numbers of neutrons.