Atomic structure and the periodic table

Front

True or False - Protons and Neutrons have about the same mass.

Back

True - They have about the same mass.

Front

How many valence electrons does an element with 5 valence electrons have?

Back

5

Front

The element sodium is found in group 1, period 3. How many shells/levels would its atom have? What is its valence electron?

Back

3 shells, 1 valence electron.

Front

What is the correct electron arrangement by shells/levels for the atom of neon?

Back

2, 8.

Front

Beryllium is in which group number?

Back

Group 2.

Front

What is the atomic number of sodium?

Back

11.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

How many protons are in an atom of carbon?

Back

6 protons.