Periodic Table and Trends

Front

What does 12.011 represent?

Back

Atomic mass.

Front

Why is there a decimal for most atomic masses?

Back

It is the average mass of all the potential isotopes of an atom.

Front

What is electronegativity?

Back

The ability of an atom to attract/accept electrons.

Front

What are vertical columns of elements on the periodic table called?

Back

Groups.

Front

What is the ionic charge of Phosphorus (P)?

Back

-3.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a period in the periodic table?

Back

A horizontal row of elements.

Front

What is the significance of the periodic law?

Back

It states that the properties of elements are a periodic function of their atomic numbers.

Front

What are alkali metals?

Back

Elements in group 1 of the periodic table, highly reactive and have one electron in their outer shell.

Front

What are noble gases?

Back

Elements in group 18 of the periodic table, known for their lack of reactivity due to having a full outer shell of electrons.