Atomic Structure
Atomic Variable
Matter
Isotopes
Random
100
What does this symbol represent? p+
A Proton.
100
What is the mass number equal to?
# of protons + # of neutrons
100
Has a definite volume but not a definite shape
Liquid
100
Which subatomic particle varies from one isotope to another?
The neutron.
100
What is the atomic number of an element that contains 8 electrons?
8
200
Which subatomic particle carries a negative charge?
An Electron.
200
What information on the periodic table relays how many protons there are in an atom?
The Atomic number
200
Phase change of a solid turning into a liquid
Melting
200
What measurement is affected by the differing number of neutrons in isotopes?
The mass number.
200

This state of matter has a definite size and a definite shape/volume.

solid

300
Which subatomic particles occupy the nucleus of the atom?
Neutrons and Protons.
300
How are the number of electrons in a neutral atom determined?
The number of electrons is equal to the number of protons or atomic number.
300
This state of matter occurs at the highest temperatures
Gas
300
How would the element with 5p+, 5e- and 6n0 be represented in hyphen notation?
B-11
300

An isotope of mercury has 80 protons and 120 neutrons, what is the atomic number of this element?

80
400
What is the net charge of an atom?
Zero.
400
What is the charge of the nucleus?
Positive.
400
Phase change of a solid turning into a gas
Sublimation
400
All atoms of the same element have what in common?
The atomic number or number of protons.
400
What does a change in the number of electrons creates?
an Ion
500
Which subatomic particle has the smallest mass?
Electron.
500
Which particles occupies the largest volume of the atom?
Electrons.
500
An unusual state of matter found in neon signs
Plasma
500
How many neutrons are there in F-21?
12
500
What is the atomic number of the atom that has a mass number or 15 and 8 neutrons?
7
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