Atoms
Atomic Mass
Atomic Number
100
Krypton contains how many protons?
What is 36
100
The atomic mass of Os...
What is 190.23
100
The Atomic Number of Mo...........
What is 42
200
Silver contains how many neutrons?
What is 61
200
The atomic mass of Pb.....
What is 207.2
300
Phosphorus contains how many electrons?
What is 15
300
Atomic Mass of Y.......
What is 88.906
400
Tin contains how many neutrons?
What is 69
400
The atomic mass of Cf.........
What is 251
500
Good contains how may neutrons?
What is 118
500
Atomic Mass of Xe.........
What is 131.29
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