Main Groups in the Modern Periodic Table

Elements of Group (7A) are known as ................

• inert gases

• alkali metals

• halogens

• alkaline earth metals

The outermost energy level of any halogen contains .................. electrons.

• 2

• 7

• 8

• 9

................ is considered from halogens.

• Sodium

• Chlorine

• Helium

• Calcium

Halogens are considered from ............... block.

• s

• p

• d

• f

All these halogens exist in gaseous state except ....................

• fluorine

• chlorine

• iodine

• (a) and (b)

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The halogen which exists in a liquid state is ........................

• bromine

• chlorine

• fluorine

• iodine

Tags

NGSS.MS-PS1-4

The molecule of halogen is composed of .................. atom(s).

• one

• two

• three

• four

Tags

NGSS.MS-PS1-1

................... in its salt solutions.

• Chlorine replaces bromine.

• Bromine replaces fluorine

• Iodine replaces chlorine

• Iodine replaces fluorine

Tags

NGSS.MS-PS1-2

The elements which can't replace bromine in its salt solution is (are) .............

• fluorine

• iodine

• chlorine

• (a) and (c)

Tags

NGSS.MS-PS1-2

The halogen, which can be prepared artificially is ..................

• chlorine

• astatine

• iodine

• bromine