Chemistry periodic table

The physical and chemical properties of the elements are the periodic functions of the elements are the periodic function of their

• Atomic weight

• Electronic configuration

• Density

• Atomic size

Long form of periodic table has

• 8 horizontal rows and 8 vertical columns

• 7 horizontal rows and 18 vertical columns

• 10 horizontal rows and 14 vertical columns

• 14 horizontal rows and 10 vertical columns

Which is the shortest period?

• 1

• 2

• 3

• 4

How many elements are present in 6th period?

• 2

• 8

• 18

• 32

Elements of group 3 to 12 are called as

• Normal elements

• d block elements

• Alkaline eaearth metals

• Alkali metals

The elements in which the last electron enters the s subshell of their outermost energy level are called

• s block

• p block

• d block

• f block

The elements whose outermost electronic configuration is ns 1 to 2 (n-1)d 1 to 10 belongs to

• s block

• p block

• d block

• f block

The general electronic configuration of s block elements is

• ns 1-2

• ns 2 np 1-6

• 3d 1 to 10

• ns 1-3

The atomic number of oxygen is

• 6

• 7

• 8

• 9

First period of the periodic table contains

• 2 elements

• 4 elements

• 6 elements

• 8 elements