Question

Elements are arranged in the modern periodic table in increasing order of their atomic

numbers. Metals are on left hand ride and middle of periodic table and non - metals are on

right hand side. A zig – zag diagonal line divides metals and non metals. Elements near zig

– zag line are called metalloids. Elements of same group have same number of valance

electrons but different number of shells. Elements of same period have different number of

valance electrons but the same number of shells. Elements in the middle of periodic table

are called transition metals.

i) Which one of the following statements are correct.

a) All group contain both metals and non metals.

b) In group 17, reactivity decreases down the group.

c) In group 1, reactivity decreases down the group.

d) Atoms of same group have same number of electrons.

ii) Which of the given is a metalloid

a) Manganese

b) Sulphur

c) Argon

d) Germanium

iii) Which one is an inert gas

a) Mn b) S Find out the element which is not the member of alkali metals

a) Lithium

b) Sodium

c) Calcium

d) Potassium

v) The most electronegative element

a) F b) Cl c) Br d) 1​

Answer 1

Answer:

x xii ICC ICCjj is all la koi xa of xx lo FM