The Basics
Charges
Subatomic
Numbers
Modern Theory
100
This is the smallest part of an element.
What is an atom?
100
Objects with the same charge do this when they come close to each other.
What is repel?
100
The subatomic particles.
What are protons, neutrons, and electrons?
100
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
100
Energy level notation for level 3.
What is n=3?
200
Neutrons are located outside of the nucleus. True or False?
What is False?
200
Objects with different charges do this when they come close to each other.
What is attract?
200
Located outside of the nucleus and have a negative charge.
What are electrons?
200
The number of protons in an atom of a certain element.
What is atomic number?
200
The outermost electrons of an atom are the core electrons.
What is false?
300
Electrons are located outside of the nucleus. True or False?
What is True?
300
Formula used to determine maximum electron capacity.
What is 2n^2?
300
Located inside of the nucleus and have a positive charge.
What are protons?
300
The atomic number of Oxygen.
What is 8?
300
Electrons move from one of these to another when they gain or lose energy.
What is an energy level?
400
Protons and neutrons are about the same size. True or False?
What is True?
400
Overall charge of the nucleus.
What is positive?
400
Atoms of different elements have different numbers of these.
What are protons?
400
The mass number of Potassium-40.
What is 40 ?
400
The region of space around the nucleus where an electron is likely to be found.
What is an orbital?
500
This is the smallest subatomic particle.
What is an electron?
500
Charge of an atom.
What is no charge?
500
An atom with the same number of protons but different number of neutrons.
What is an isotope?
500
Number of neutrons in Potassium-40.
What is 21?
500
The most modern description of the atom.
What is the electron cloud model?
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