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What are the vertical columns on the periodic called?

• groups

• periods

• nonmetals

• metals

• metalloids

What do the vertical columns on the periodic table tell us?

• The number of orbitals

• The number of valence electrons (electrons on the outer most shell)

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

How do you calculate the number of neutrons? *

• Mass = Atomic number - Neutrons

• Mass - Atomic number = Neutrons

• Atomic number = Neutrons

What group and period does this element belong in? *

• period 1 and group 3

• period 3 and group 1

• period 2 and group 3

• period 3 and group 2

How many protons and electrons does nickel have?

• 28

• 59

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

The atom with the largest atomic radius in Period 4 (row 4) is - 

• K
• Kr
• Fe
• Fe

The valence electrons are 

• electrons in the outermost (valence) shell 

• electrons with a positive charge. 

• electrons in the innermost shell. 

• electrons found in the nucleus.