1. Where does an electron located in an atom?
a. In the nucleus
b. In the cloud like formation outside the nucleus
c. In the periodic table of elements
d. In the nucleus with proton
2. Which statement is true about an atom?
a. All elements have same atomic number
b. The number of electron is always equal to the number of neutron
c. Mass number of an element can be the same with the atomic
number
d. The number of proton is same with the number of electron
3. Which does not belong to the group?
a. Mason
c. Proton
b. Electron
d. Neutron
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Answer:
1.)B. In the cloud like formation outside the nucleus
2.) A. All elements have same atomic number
3.)A. Mason
Explanation: