engineering recuitment ISRO Scientific Assistant Physics 2020 General Science Chemistry Structure of Atom
_______ is the most electropositive and ______ is the most electronegative element of the third period of the modern periodic table.
A. Sodium, Potassium
B. Magnesium, Aluminium
C. Sodium, Chlorine
D. Aluminium, Chlorine
1
B
2
D
3
A
4
C