Question

The atomic number of an element 'X' is 20.
i)Determine the position of the element 'X' in the periodic table.
ii) Write the formula of the compound formed when 'X' reacts/combines with another element 'Y'(atomic number 8)
iii) What would be the nature (acidic or basic) of the compound formed​

Answer 1

Answer :

i) Group 2, Period 4

ii) CaO

iii) basic