Question

Which of these sets of elements has similar properties?


chromium, magnesium, iron, cobalt

oxygen, nitrogen, carbon

strontium, magnesium, calcium, beryllium

hydrogen, helium, neon

Answer 1

Elements in a group have similar properties. 

strontium, magnesium, calcium, beryllium  are the answers because they belong to same group (2nd group).

Answer 2

Answer:

strontium, magnesium, calcium, beryllium

Explanation:

these all belong to the same group!