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20 questions
Which subatomic particle has a positive charge?
proton
neutron
electron
midichlorian
Which subatomic particle has a negative charge?
proton
neutron
electron
cybertron
What is the center of an atom called?
The headquarters
The centrometer
The hypothesis
The nucleus
The nucleus of an atom contains which subatomic particles?
protons and electrons
protons and neutrons
electrons and neutrons
protons, electrons, and neutrons
Typically in an atom, which two subatomic particles are equal in number?
protons and neutrons
all subatomic particles are equal in number
neutrons and electrons
protons and electrons
What is the atomic mass of Neon?
10
20.18
10.18
30.18
How many electrons does a Copper atom have?
63
29
92
34
How many electrons does a neutral Hydrogen atom have?
1
2
3
0
How many electrons does an atom of Krypton have?
36
83.80
48
119.80
How many protons are present in phosphorus?
15
16
31
46
How many neutrons does this lithium have?
8
3
4
5
An element is defined by its number of ...
protons
electrons
neutrons
protons + electrons
An atom with atomic number 6 would have how many neutrons?
6
12
3
cannot be determined
A neutral atom of the element sodium has ____ electrons.
22
23
8
11
Adding or subtracting electrons changes the elements overall charge and makes the element change into an...
ion
mixture
isotope
neutral atom
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