The fundamental unit of element is……
a) atom
b) mixture
c) matter
d) compound
Calcium element is denoted by……….
a) C
b) Ce
c) Cs
d) Ca
The unique property of an element is called :
a) electronegativity
b) valency
c) mobility
d) oxidation
Explanation:Valency of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules.
Hg is symbol of………. element.
a) mercury
b) tungsten
c)silver
d) lead
Explanation:Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named Hydrargyrum.
Identify the element which is in liquid state.
a) Carbon
b) Neon
c) Bromine
d) Magnesium
Matter usually occurs as……….
a) mixture
b) compounds
c) pure Substance
d) liquids
