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Chemistry : Atoms, Molecules, Elements and Compounds


Answer the following questions by choosing the appropriate option.

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Multiple choice

Your Performance  

1.

Isotopes have same atomic weight.

  True

  False

 

2.

An atom consists of a central nucleus containing positively-charged protons and negatively-charged neutrons.

  True

  False

 

3.

Electrons are present in the nucleus.

  True

  False

 

4.

Isotopes have similar chemical properties.

  True

  False

 

5.

Neutrons are negatively-charged.

  True

  False

 

6.

In a neutral atom, the number of neutrons and protons is equal.

  True

  False

 

7.

Atomic number of an element is the number of neutrons present in the nucleus of the atom.

  True

  False

 


 
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