Atomic Structure Question Preview (ID: 57358)


Parts Of The Atom. TEACHERS: click here for quick copy question ID numbers.

What are the smallest particles or building blocks of matter?
a) compounds
b) atoms
c) elements
d) molecules

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 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

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

The smallest of the subatomic particles
a) electrons
b) protons
c) neutrons
d) protons and neutrons

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

Negatively charged particles
a) neutrons
b) electrons
c) protons
d) isotopes

The center or core of the atom
a) electron cloud
b) nucleus
c) neutrons
d) atomic mass

Positively charged particle
a) proton
b) neutron
c) ion
d) electron

Particle with no charge
a) isotope
b) electron
c) neutron
d) proton

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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