Atomic structure

Front

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

Back

Nucleus

Front

Calculation used to find the number of neutrons in an atom

Back

Mass Number - Atomic Number

Front

How many neutrons does a sodium atom have?

Back

12

Front

How many protons does this atom have? Options: 2.5, 6, 5, 10.811

Back

5

Front

What two particles make up the ATOMIC MASS of an element?

Back

Protons and Neutrons

Front

Which particle makes up the ATOMIC NUMBER of an element? Options: Protons, Electrons, Protons and Neutrons, Neutrons

Back

Protons

Front

The horizontal row on the periodic table is called a

Back

period

Front

A vertical column is called...

Back

group

Front

The number at the bottom of each square on the periodic table is the ...

Back

atomic mass

Front

Most of the elements on the periodic table are classified as

Back

metals