Atoms MCQs with Answers

Complete transfer of one or more electrons from one atom to another atom forms?

• A.Covalent bond
• B.Ionic bond
• C.Hydrogen bond
• D.Metallic bond

The nature of positive rays depends on ?

• A.the nature of the cathode used
• B.the nature of residual gas
• C.the nature of the anode used
• D.the voltage applied across electrodes

The molecule consisting of two atoms is called _?

• A.Monoatomic molecule
• B.Diatomic molecule
• C.Polyatomic molecule
• D.Triatomic molecule

Past Paper MCQ

The electron was first identified by?

• A.J. J. Thomson
• B.Ernest Rutherford
• C.James Chadwick
• D.Niels Bohr

Which orbital is filled first according to increasing energy?

• A.4d
• B.5s
• C.5p
• D.4f

The maximum number of electrons in sub energy level l = 3 are _?

• A.10
• B.14
• C.6
• D.18

The identity of an element is determined by ?

• A.The total number of its nucleons
• B.The number of its neutrons
• C.The number of its electrons
• D.The number of its protons

Which is the configuration of Cr?

• A.3d⁴4s²
• B.3d⁵4s¹
• C.3d⁶4s⁰
• D.3d³4s²

Quantum Numbers are solution of _?

• A.Heisenberg's Uncertainty Principle
• B.Schrodinger's Wave Equation
• C.Planck's Quantum Theory
• D.Bohr's Atomic Model

What is the smallest size of the matter known as?

• A.Molecule
• B.Atom
• C.Electron
• D.Cell