Periodic Table, Valence Electrons, Ions

How many valence electrons do atoms in group 16 have?

• 4
• 5
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What group has 2 valence electrons for each atom?

• group 1
• Alkaline Earth Metals
• Transition Metals
• Halogens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Argon (Ar) have?

• 2
• 8
• 18
• 40

Tags

NGSS.HS-PS1-1

What element has 3 valence electrons and is in period 4?

• Aluminum
• Gallium
• Silicon
• Germanium

Tags

NGSS.HS-PS1-1

When you combine a metal + nonmetal, you create this type of bond

• Covalent
• Metallic
• Alloy
• Ionic

What element has 7 valence electrons and is in period 2?

• Beryllium
• Chlorine
• Magnesium
• Fluorine

Tags

NGSS.HS-PS1-1

What is the ionic charge for an atom with 3 EXTRA electrons?

• -3
• 0
• +3
• -2

What is the ionic charge for Phosphorus?

• -2
• +3
• -3
• -1

Choose an element from the list that would have physical and chemical properties the most similar to Aluminum (Al).

• Gallium (Ga)
• Silicon (Si)
• Magnesium (Mg)
• Neon (Ne)

Tags

NGSS.HS-PS1-1

How many Chlorine atoms are in 4NaCl₂ ?

• 2
• 4
• 8
• 12

Tags

NGSS.MS-PS1-1