Structure & Subatomic particles Flashcards
1
Q
What is the particles smaller than an atom called?
A
sub-atomic particles
2
Q
What are the three sub-atomic particles?
A
protons, neutrons & electrons
3
Q
What are the charges of protons, neutrons & electrons?
A
protons = +1(positive)
neutrons = 0/no net charge
electrons = -1(negative)
4
Q
Atoms are _________(no net charge)
A
electrically neutral
5
Q
number of protons = number of ________
A
electrons
6
Q
What is the relative mass of protons, neutrons & electrons?
A
protons = 1
neutrons = 1
electrons = 1/1840
7
Q
Protons and neutrons are found in the _________, and electrons are found in the ________.
A
nucleus, electron shells
8
Q
Nucleon(mass no.) = Total no. of ________ and __________
A
protons and neutrons
9
Q
Number of neutrons = _______ number - ________ number.
A
Nucleon - Proton
