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Worksheets9ASP Revision for Pop quiz
Total questions: 17
Worksheet time: 12mins
99.9% of the atom's mass is found where?
nucleus
protons
electron cloud
neutrons
Rutherford concluded that the amount of positive charge varies
with the amount of electrons in the nucleus.
as the the amount of isotopes varies.
with the amount of neutrons in the nucleus.
with different elements.
JJ Thomson used a cathode ray tube to discover what about the atom.
The atom is mostly empty space
The atom has a positive, solid core called a nucleus
Atoms have electrons that have a negative charge
Atoms have electrons that have a positive charge.
Rutherford discover what about the atom when most of the alpha particles went straight through the gold foil.
The atom is mostly empty space
The atom has a positive, solid core called a nucleus
Atoms have electrons that have a negative charge
Atoms have electrons that have a positive charge.
Rutherford discover what about the atom when a tiny percent of alpha particles either deflected or bounced off of the gold foil?
The atom is mostly empty space
The atom has a positive, solid core called a nucleus
Atoms have electrons that have a negative charge
Atoms have electrons that have a positive charge.
Which subatomic particle has no charge, is found in the nucleus, and contributes to the overall mass of an atom?
proton
electron
neutron
scantron
How many electrons would a neutral atom of Argon (Ar) have?
18
22
39
40
The image above represents which model of the atom?
The watermelon model
The solid sphere model
The quantum model
The plum pudding model
