periodic table

What are valence electrons?

• Any of an atom's electrons

• Electrons located on the first energy level

• Electrons not attached to any atom

• electrons located on the outer energy level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What period is Lead (Pb) in?

• 6

• 4

• Metals

• 4A

Tags

NGSS.HS-PS1-1

What group or family is lead in?

• halogens

• alkaline earth metals

• noble gases

• transition metals

What category is silicon (Si) a part of?

• Metal

• Nonmetal

• Metalloid

• Halogens

What element is in period 4, group 5A?

• Antimony

• Arsenic

• Tin

• Germanium

What is the ionic charge of Phosphorus (P)?

• +5

• -3

• +3

• -5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons does a Strontium (Sr) ION have?

• 38

• 10

• 8

• 36

Tags

NGSS.HS-PS1-1

How many neutrons does Bromine (Br) have?

• 35

• 80

• 45

• 7

Tags

NGSS.MS-PS1-1

What period contains the element Plutonium (Pu)?

• 8

• 6

• 7

• Plutonium doesn't exist

What is group name of the most reactive metals?

• Noble gases

• Halogens

• Alkali metals

• Alkaline earth metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2