Periodic Classification Of Elements - Practice Test

(A) fluorine

(B) iodine

(C) chlorine

(D) bromine

(A) fluorine

(A) 16, 9

(B) 18, 7

(C) 18, 9

(D) 13, 7

(B) 18, 7

(A) Sodium

(B) Calcium

(C) Iron

(D) Potassium

(D) Potassium

(A) more than oxygen

(B) half of oxygen

(C) same as oxygen

(D) less than oxygen

(A) more than oxygen

(A) The last element of every period has 8 valence electrons except helium, which consists of 2

(B) Elements of groups 3 to 12 are called transition elements

(C) Elements that have atomic numbers from 57 to 70 are called lanthanide series

(D) The element whose atomic number is 89 to 103 is called actinide serie

(C) Elements that have atomic numbers from 57 to 70 are called lanthanide series

Periodic Classification Of Elements - Study Mode