4a Flashcards
1
Q
What is the smallest article capable of chemical interactions
A
An atom
2
Q
The number of protons in the nucleus is called what and what is its symbol
A
Atomic number
Z
3
Q
What makes up the nucleus and contains almost all of the mass of the Adam
A
Neutrons
Protons
4
Q
What is the name of the atom’s lowest energy state which contains six or seven levels
A
Ground state
5
Q
Four dimensional…
A
Orbital
6
Q
Positive particles in the nucleus
A
Protons
7
Q
Neutral particles
A
Neutrons
8
Q
Neutron symbol
A
n
9
Q
Proton symbol
A
p
10
Q
Electrons exist only in certain energy levels outside the nucleus. These energy levels are called
A
Principal energy levels
11
Q
Positively charged ions with a mass of about 7300 electrons
A
Alpha particles
