Question

q5 - find the alkaline earth metal in 6th period
magnesium
calcium
radium
barium
question 6 (1 point)
q6 - find the noble gas in the 3rd period
argon
krypton
radon
neon

Explanation:

• For Q5, alkaline - earth metals are in group 2 of the periodic table. Barium is in the 6th period and group 2.
• For Q6, noble gases are in group 18. Argon is in the 3rd period and group 18.

Answer:

Q5. D. Barium
Q6. A. Argon