Chemistry Unit Review 1

Which sub atomic particle has a positive charge?

• Protist

• Neutron

• Electron

• Proton

What three subatomic particles make up an atom?

• Protists, Neurons, Electrodes

• Protons, Neutrons, Electrons

• Protons, Neurons, Electrodes

• Protists, Neutrons, Electrodes

Tags

NGSS.MS-PS1-1

What coefficient is needed in the blank to balance this chemical equation?

H₂O_{2 -->} H₂ + ___ O

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

How many protons are in one oxygen atom?

• 8

• 7

• 15.999

• 23.999

Tags

NGSS.HS-PS1-1

How many electrons are in one neutral Lithium atom?

• 3

• 4

• 6.941

• 9.941

Tags

NGSS.HS-PS1-1

How many neutrons are in one neutral Lithium atom?

• 3

• 4

• 6.941

• 9.941

Tags

NGSS.MS-PS1-1

What group is He in on the periodic table?

• 1 - Alkali Metals

• 2 - Alkaline Earth Metals

• 7 - Halogens

• 8 - Nobel Gasses

Tags

NGSS.MS-PS1-1

What group is Cl in on the periodic table?

• 1 - Alkali Metals

• 2 - Alkaline Earth Metals

• 7 - Halogens

• 8 - Nobel Gasses

Tags

NGSS.MS-PS1-1

What group is Mg in on the periodic table?

• 1 - Alkali Metals

• 2 - Alkaline Earth Metals

• 7 - Halogens

• 8 - Nobel Gasses

What group is Na in on the periodic table?

• 1 - Alkali Metals

• 2 - Alkaline Earth Metals

• 7 - Halogens

• 8 - Nobel Gasses

Tags

NGSS.MS-PS1-1