Atomic Structure And History Of Atomic Models Review Question Preview (ID: 33938)


Overview Of The History Of Atomic Theory Or The Understanding Of The Atom And How Atoms Work. As Technology Improved And Changed, So Too, Did The Understanding Of The Atom. TEACHERS: click here for quick copy question ID numbers.

I determined many characteristics of atoms. For example: all elements are made of atoms and all compounds are made of different elements. I thought an atom was just a hard round ball.
a) Bohr
b) Rutherford
c) Chadwick
d) Dalton

I discovered the ELECTRON and thought the atom was a round ball of positive particles with negative particles embedded. Kind of like a berry muffin or plum pudding
a) J.J. Thomson
b) Dalton
c) Chadwick
d) Bohr

My Gold Foil Experiment PROVED that positive particles existed in a NUCLEUS or center of the atom.
a) Dalton
b) Rutherford
c) Chadwick
d) J.J. Thomson

I discovered that electrons move in different orbits. But I was wrong thinking that they moved around the nucleus like the planets around the sun.
a) Chadwick
b) Rutherford
c) Neils Bohr
d) Dalton

electrons actually move around outside the nucleus in what is called the ___
a) planetary orbit
b) atomos plane
c) electron cloud
d) nucleic chromosome

I discovered the Neutron in 1930's. Don't let my scary eyes fool you! I also learned that the mass of a neutron is almost the same as a proton.
a) Rutherford
b) Chadwick
c) Dalton
d) Thomson

I am POSITVE, I LIVE IN THE NUCLEUS and I am 1 of 3 particles that make up atoms.
a) proton
b) neutron
c) electron
d)

I am NEGATIVE; I exist in the cloud around the nucleus; I am so tiny my mass is not counted.
a) proton
b) neutron
c) electron
d)

I might have NO CHARGE but I live in the Nucleus of atoms and you count my mass.
a) proton
b) neutron
c) electron
d)

You use ME to identify an ELEMENT. I am equal to the # of protons in the nucelus.
a) atomic number
b) atomic mass
c) isotopes
d)

The amount of matter of an atom is its atomic mass. To calculate you add these 2 together...
a) electrons + neutrons
b) protons + electrons
c) protons + neutrons
d) electrons only

ALL OF THE SAME ELEMENTS HAVE THE SAME # OF PROTONS but, IF THE ELEMENT HAS A DIFFERENT # OF NEUTRONS IT IS CALLED A OR AN __
a) COMPOUND
b) ISOTOPE
c) MOLECULE
d)

EACH ROW ON THE PERIODIC TABLE IS CALLED A
a) group
b) period
c) family
d)

Another name for a GROUP that shares similar properties is called a ____
a) family
b) nook
c) compound
d)

Each column on the periodic table is called a ____
a) period
b) group
c)
d)

How many periods are there in the Periodic Table?
a) 18
b) 7
c) 21
d)

What 3 ALWAYS have the same #?
a) neutrons, atomic mass, protons
b) atomic #, protons, electrons
c) electrons, neutrons, protons
d)

An element has an Atomic Mass of 100 and 25 protons. How many neutrons does it have?
a) 100 + 25 = 125
b) 100 - 25 = 75
c) 100/25 = 4
d)

An element has 80 protons and 121 Neutrons. What is its atomic #?
a) 80 + 121 = 201
b) 121
c) 80
d)

Which letter is never used in any element symbol?
a) J
b) H
c) Z
d)

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