Elements with valency 1 are:(i) Always metals. (ii) Always metalloids.(iii) Either metals or non-metals. (iv)Always non-metals.

10._______ have properties which are between metals and non-metals

What class of elements can have properties of both metals and nonmetals?(be careful, spelling counts)

An element that has physical and chemical properties of both metals and nonmetals

Write the  3 difference between metals and non-metals on the basis of their physical properties.

Compared with nonmetals, the number of valence electrons in metals is generally 1 pointabout the same.smaller.almost triple.greater.