Structure Of The Atom Question Preview (ID: 50496)
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.
An element is defined by its:
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 above.
The charge of the nucleus is:
a) Negative.
b) Positive
c) Neutral.
d) None of the above.
The number of neutrons N can be determined by:
a) N = A – Z.
b) N = A + Z
c) N = Z - A
d) A = 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.
b) Atoms that have different number of neutrons
c) Atoms that have different mass numbers
d) All of the above
Cl (Z=17, A=35) and Cl (Z=17, A=37) are:
a) Allotropes.
b) Isotopes.
c) Isomers.
d) Different elements.
The number of elements in this set V(Z=7, A=14)- W(Z=12,A=25)-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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