Elements MCQs with Answers

The electronic distribution of magnesium (Mg) is 2, 8, 2. The location of magnesium in the periodic table is?

• A.Period= 2, Group= 3
• B.Period= 3, Group= 2
• C.Period= 2, Group= 2
• D.Period= 3, Group= 3

Past Paper MCQ

What is the name of the table in which elements are grouped according to their atomic number?

• A.Elemental Chart
• B.Atomic Table
• C.Periodic Table
• D.Mendeleev's Chart

Who discovered the periodic table?

• A.John Dalton
• B.Henry Moseley
• C.Antoine Lavoisier
• D.Dmitri Mendeleev

The total number of elements in S-block is _?

• A.12
• B.14
• C.16
• D.18

Elements of group IIA have _ electrons in outermost S-orbit.

• A.1
• B.2
• C.3
• D.4

The Periodic Table, which arranges chemical elements according to their Atomic number and chemical properties, was formulated by _?

• A.Antoine Lavoisier
• B.John Dalton
• C.Dmitri Mendeleev
• D.Henry Moseley

In the periodic table, elements are arranged according to ?

• A.Increasing atomic mass
• B.Alphabetical order
• C.Increasing neutron count
• D.Increasing atomic number

The noble gases in periodic table are placed in _?

• A.Group I
• B.Group VIII
• C.Group IV
• D.Group VII

What is an element defined as in terms of atomic structure?

• A.A substance made up of molecules with identical chemical bonds
• B.A substance made up of atoms with the same number of neutrons
• C.A substance made up of atoms with the same atomic mass
• D.A substance made up of atoms with the same number of protons

The matter which consists of identical atoms is called an element. Which one of the following elements exists as individual atoms?

• A.Oxygen
• B.Nitrogen
• C.Helium
• D.Hydrogen