Atomic Structure and Isotopes Quiz

Protons carry a positive charge in an atom.

Electron has lesser mass compared to a proton.

Atomic number represents the number of protons in an element.

Isotopes are atoms of the same element with different numbers of neutrons.

Mass number is the total number of protons and neutrons in an atom.

Electrons are responsible for chemical bonding.

Ernest Rutherford proposed the nuclear model of the atom.

Bond length refers to the distance between the nuclei of two bonded atoms.

Neutrons are responsible for radioactivity.

Radioactivity is the spontaneous breakdown of unstable atomic nuclei.

Ionization energy is the energy required to remove an electron from an atom.

Fluorescence is the spontaneous emission of light by an atom or molecule.

J.J. Thomson proposed the plum pudding model of the atom.

Avogadro's number represents the number of atoms in one mole of a substance.

Radioactivity is the process where an unstable nucleus emits radiation.

Neutrons are responsible for holding the nucleus together.

Isotopes are atoms of the same element with different numbers of neutrons.

Uranium has the highest number of isotopes among the listed elements.

Hydrogen has no neutrons in its nucleus.

The symbol for an atom with 6 protons, 6 neutrons, and 6 electrons is C (Carbon).

Max Planck proposed the concept of quantized energy levels in an atom.

Fluorine has the highest electronegativity among the listed elements.

James Chadwick discovered the neutron.

Silicon has the highest first ionization energy among the listed elements.

Erwin Schrödinger proposed the concept of atomic orbitals.