Atomic Structure Flashcards
1
Q
What are the 3 subatomic particles?
A
Protons, electrons, neutrons.
2
Q
What are protons relative charge?
A
+1 (they are positive)
3
Q
What is the relative charge of electrons?
A
-1 (they are negative)
4
Q
What is the relative charge of neutrons?
A
0 (they are neutral)
5
Q
What is the relative charge of neutrons?
A
0 (they are neutral)
6
Q
Protons and neutrons are found in the nucleus and…
A
Electrons orbit the nucleus
7
Q
Why do atoms have no overall charge?
A
Because the number of positive
Protons = the number of negative electrons.
8
Q
What is the atomic number?
A
Number of protons
9
Q
What is the mass number?
A
The number of protons and neutrons in total.
10
Q
What are isotopes?
A
Atoms of the same element that have different number of neutrons.
