Atoms and Periodic Table

Front

What gives an atom mass?

Back

Protons and neutrons in the nucleus.

Front

What does the symbol 'H' stand for in the periodic table?

Back

Hydrogen.

Front

What are the rows on the periodic table called?

Back

Periods.

Front

What are the columns on the periodic table called?

Back

Groups.

Front

Which subatomic particle has a negative charge?

Back

Electron.

Front

Which subatomic particle has no charge?

Back

Neutron.

Front

Which subatomic particle has a positive charge?

Back

Proton.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an element's isotopes.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.