Answer :
Answer:
Calcium
Explanation:
It has similar properties as Magnesium (Mg) and Strontium (Sr)
The Atomic number of Calcium (Ca) is 20
The Atomic number of Krypton is 36
The Atomic number of Magnesium is 12
12 < 20 < 36
Answer:
Calcium
Explanation:
It has similar properties as Magnesium (Mg) and Strontium (Sr)
The Atomic number of Calcium (Ca) is 20
The Atomic number of Krypton is 36
The Atomic number of Magnesium is 12
12 < 20 < 36