The charge on a Sodium ion is

• +1

• +2

• -1

• -2

A Sodium has ________ electrons in the outer shell

• 1

• 2

• 8

• 9

The mass number of an atom is made up from

• The number of protons plus electrons

• The number of protons plus neutrons

• The number of neutrons pus electrons

• The number that the element is on the periodic table

The basic electron configuration of Calcium (atomic number 20) is

• 2,10,8

• 2,4,6,8

• 2,8,8,2

• 2,8,10

The number of neutrons in Chlorine-37 is

• 17

• 18

• 19

• 20

The number of neutrons in Carbon-14 is

• 6

• 12

• 14

• 8

The number of protons in Carbon-14 is

• 6

• 12

• 14

• 8

The chemical symbol for Potassium is

• P

• K

• Po

• 19

The atomic number refers to the

• number of electrons

• number of protons

• number of electrons and protons

• number of protons and neutrons

Hg is the chemical symbol of

• Higgs-Boson

• Hydrogen

• Mercury

• Hydronium