7.3 Mastery Check: Periodic Table Scavenger Hunt

Symbol is Au​ (a)  

• gold
• argon
• silver
• copper
• iron
• potassium
• helium

The most reactive nonmetal​ ​ (a)  

• selenium
• argon
• phosphorus
• potassium
• helium
• fluorine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atomic number of 12​ (a)  

• Magnesium
• Oxygen
• Iron
• Calcium
• Carbon
• Aluminum

An alkali metal in period 4.​ (a)  

• potassium
• gold
• chlorine
• silicon
• beryllium
• rubidium

The most abundant element in air.

Hint: it has an atomic number of 7.​ (a)  

• nitrogen
• oxygen
• carbon
• helium
• hydrogen
• sulfur

A metal with 3 valence electrons, used in cans.​ (a)  

• aluminum
• gold
• iron
• copper
• francium
• mercury

A period 3 element that will not react naturally.​ (a)  

• argon
• sodium
• chlorine
• magnesium
• scandium
• boron

Has 5 valence electrons and is in period 3.​ (a)  

• phosphorous
• sodium
• chlorine
• magnesium
• nickel
• silicon

The most reactive metal.​ (a)  

• francium
• gold
• lead
• copper
• scandium
• mercury

A period 1 element used to make balloons float.​ (a)  

• helium
• oxygen
• hydrogen
• nitrogen
• carbon
• chlorine