Periodic Table

The identity of an element on the periodic table is determined by the number of _______.

• protons

• neutrons

• electrons

• ions

The columns in the periodic table are called

• a metal

• a nonmetal

• a group/family

• a period

The chemical properties of an element are determined by the number of

• energy levels

• valance electrons

• isotopes

• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Hydrogen and Helium have similar physical and chemical properties.

• True

• False

There are 7 periods on the periodic table.

• True

• False

Which element has properties similar to Calcium (Ca)?

• Sodium

• Magnesium

• Potassium

How many neutrons can be found in an atom of Na (Sodium)?

• 12

• 11

• 22.99

• 23

Tags

NGSS.MS-PS1-1

How many protons does Potassium (K) have?

• 39

• 19

• 20

• 39.10

Tags

NGSS.MS-PS1-1

What is the atomic mass of Calcium (Ca)?

• 40.08

• 20

Ions are elements with the same number of protons and a different number of neutrons.

• True

• False