WorksheetsChemistry
Total questions: 7
Worksheet time: 70secs
Compute the atomic mass of Tc with 43 number of proton, 43 electrons and 55.907 neutrons?
A. 43.810
B. 88.701
C. 98.907
D. 143.907
Compute the number of Neutron of Au with 79 numbers of proton, 79 electrons and 196.97 atomic mass?
A. 117.97
B. 158
C. 275.97
D. 354.97
How to compute the number of electron of an atom?
A. By adding the number of proton to the number of neutron
B. By subtracting the number of proton to the neutron
C. By subtracting the number of proton to the charge of an atom
D. By adding the number of neutron to the charge of an atom
How many proton does an element have with 65.39 atomic mass, 35.39 neutron and 30 electron?
A. 30
B. 95.39
C. 5.39
D. 35
Which of the following is an atom or molecule with a net electric charge due to loss or gain of one or more electron?
A. Ion
B. Proton
C. Electron
D. Isotope
Using the picture shown, compute for the number of electron of an atom.
A. 40.08
B. 20
C. 18
D. 20.08
Using the picture shown, Compute for the number of neutron.
A. 0
B. 5
C. 10
D. 10.180
