What is NOT one of the three main groups of the periodic table?

• groups

• metal

• nonmetals

• metalloids

What are the vertical columns on the periodic called?

• groups

• periods

• nonmetals

• metals

• metalloids

What are the horizontal rows on the periodic table called?

• periods

• groups

• metals

• nonmetals

• metalloids

What does the number of proton tell us?

• electrons

• atomic number

• atomic mass

• neutrons

Tags

NGSS.HS-PS1-7

How many valence electrons does the element have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the atomic number of nickel?

• 28

• 58.69

Tags

NGSS.HS-PS1-1

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Tags

NGSS.HS-PS1-1

What does 12.011 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Tags

NGSS.HS-PS1-1

the positively charged subatomic particle contained in the nucleus of an atom

• proton

• neutron

• electron

• matter

Tags

NGSS.MS-PS1-5

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

• proton

• neutron

• electron

• matter