Sub Atomic Particles Flashcards
1
Q
Proton
A
A small, positively charged particle of matter found in the atoms of all elements. (Atomic number)
2
Q
What do protons consist of ?
A
2 up quarks and 1 down quark
3
Q
Neutrons
A
Neutral charge and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.
4
Q
What do neutrons consist of ?
A
1 up quark and 2 down quark
5
Q
Electrons
A
a subatomic particle with a negative 1 elementary electric charge.
6
Q
Nucleus
A
location of protons and neutrons, desne core of atom, and location of most of the atoms mass
7
Q
Electron cloud
A
comprise most of the atoms volume, location of electrons, and mostly empty space
8
Q
Mass number (A)
A
number of protons + neutrons (top number)
9
Q
Atomic number (Z)
A
Number of protons=electrons
10
Q
Sum of neutrons
A
Mass number - protons
