Structure Of The Atom Question Preview (ID: 50648)


Atom Is The Smallest Entity Of Matter. This Game Aims To Structure Of The Atom Course For Grade 8 Students. TEACHERS: click here for quick copy question ID numbers.

For X (Z, A) Z is the:
a) Atomic number.
b) Mass number.
c) Number of neutrons.
d) Atomic mass.

The main subatomic particles are:
a) Protons and Electrons.
b) Protons and Neutrons.
c) Electrons, Protons and Neutrons.
d) None of the choices.

The charge of the nucleus is equal to:
a) Number of protons × relative charge of a proton.
b) Number of neutrons × relative charge of a neutron.
c) Number of electrons × relative charge of an electron.
d) None of the choices.

The number of electrons can be determined by:
a) Number of electrons = A – N.
b) Number of electrons = A + Z
c) Number of electrons = Z - A
d) Number of electrons = Z – N.

The neutral particles are called:
a) Electrons.
b) Neutrons.
c) Protons.
d) Positrons.

The mass of the atom is concentrated in:
a) The Energy Levels.
b) The Electron Cloud.
c) The Nucleus.
d) Outside the Nucleus.

The atom is electrically neutral since:
a) Protons balance Neutrons.
b) Electrons balance Neutrons.
c) Protons exceed Electrons
d) Protons balance Electrons

Isotopes are:
a) Atoms that have the same atomic number but different number of electrons.
b) Atoms that have different number of neutrons and protons.
c) Atoms that have the same atomic number but different mass numbers.
d) None of the choices.

Cl (Z=17, A=35) and X (Z=18, A=35) are:
a) Allotropes.
b) Isotopes.
c) Isomers.
d) Different elements.

The number of elements in this set V (Z=7, A=14), W (Z=7, A=13), X (Z=6, A=12), Y (Z=7, A=13) and Z (Z=6, A=13) is:
a) 2
b) 3
c) 4
d) 5

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