Atomic Structure Question Preview (ID: 57358)
Parts Of The Atom.
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Positively charged particle
a) proton
b) neutron
c) ion
d) electron
Particle with no charge
a) isotope
b) electron
c) neutron
d) proton
The center or core of the atom
a) electron cloud
b) nucleus
c) neutrons
d) atomic mass
Negatively charged particles
a) neutrons
b) electrons
c) protons
d) isotopes
Particles found in the nucleus
a) protons and electrons
b) neutrons and electrons
c) protons only
d) protons and neutrons
Where are the electrons located?
a) both inside and outside the nucleus
b) inside the nucleus in orbitals
c) outside the nucleus in specific shells
d) inside the neutrons in the nucleus
The smallest of the subatomic particles
a) electrons
b) protons
c) neutrons
d) protons and neutrons
What is the atomic number?
a) the total number of protons and neutrons
b) the number of neutrons in an atom
c) the number of protons in an atom
d) the total of all 3 subatomic particles
What information does the atomic mass or mass number give us?
a) the number of protons
b) the total number of all 3 particles
c) the number of electrons
d) the number of protons and neutrons
Which of the following will best help us determine the number of electrons?
a) atomic number
b) the element symbol
c) the mass number
d) the number of neutrons
What are the smallest particles or building blocks of matter?
a) compounds
b) atoms
c) elements
d) molecules
What are pure substances that cannot be broken down in simpler substances by chemical means?
a) molecules
b) compounds
c) elements
d) mixtures
Greek philosopher who used the term atomos
a) Dalton
b) Democritus
c) Thomson
d) Chadwick
Scientist who discovered the proton and the nucleus.
a) Chadwick
b) Bohr
c) Rutherford
d) Thomson
Scientist who identified the electron
a) Dalton
b) Thomson
c) Democritus
d) Bohr
Scientist who determined that electrons circle in specific layers or shells.
a) Rutherford
b) Thomson
c) Chadwick
d) Bohr
Scientist who discovered the neutron
a) Rutherford
b) Chadwick
c) Dalton
d) Democritus
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