Periodic Table

Which two elements on the periodic table are in the same group?

• Na and He

• O and C

• Li and Ne

• He and Ar

How many valence electrons are in an element in group 15 in the periodic table?

• 5

• 15

• 7

• 8

What do the periods on the periodic table tell us?

• The number of energy levels

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

How do you calculate the number of neutrons? *

• Mass = Atomic number - Neutrons

• Mass - Atomic number = Neutrons

• Atomic number = Neutrons

What is the name of the element? (Periodic table will be needed)

• sodium

• magnesium

• vanadium

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.MS-PS1-1

How many valence electrons does the element have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many protons and electrons does nickel have?

• 28

• 58.69

Tags

NGSS.MS-PS1-1

What is the atomic mass?

• 58.693

• 28

Tags

NGSS.MS-PS1-1

How many energy levels does Nickel have?

• 3

• 4

• 5

• 10

Tags

NGSS.HS-PS1-1