Atomic Number
Subatomic particles
Mass
Shells/Orbitals
Random
100
what is the atomic number for Krypton?
36
100
What is the charge of a proton?
Positive
100
What is the mass of a proton?
1 amu
100
How many electrons fit in the first shell?
2
100
Protons determine ___ for an atom
identity
200
What is the atomic number for Magnesium?
12
200
What is the charge of neutron?
Neutral, 0
200
What is the mass of neutron?
1 amu
200
How many electrons fit in the second shell?
8
200
What does electrons determine?
Chemical Reactivity
300
What is the missing part in this equation ?
(Atomic number= ______ = Electrons)
Protons
300
What is the charge of an electron?
Negative, (-)
300
What is the mass for an electron?
close to nothing, 0
300
How many electrons fit in the third shell?
18
300
Where are valence electrons located?
Last or Outermost shell/orbital/level
400
What is the atomic number for Protacinium?
91
400
What is the charge of a valence electron?
Negative
400
How do you find the mass of atom?
mass= protons + neutrons
400
How many electrons fit in the fourth shell?
32
400
How do you know when an atom is stable?
When its valence shell is full
500
What is the atomic number for this element ?
14
500
What is the charge of a nucleus ?
Positive
500
What is the unit for mass?
AMU
500
How many electrons fit in the fifth shell?
50
500
What are the 5 properties of atomic structure?
1. building blocks of matter
2. Can not be broken into simpler substances
3. Composed of subatomic particles
4. nucleus surrounded by an electron cloud
5. Each element is only one type of atom