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Atoms- Smallest Unit of Matter¬†

3. Chemical Principles of Microbiology / Atoms- Smallest Unit of Matter / Problem 4

Choose which statement is INCORRECT about the periodic table and its contents:

A

The mass number is the sum of the number of electrons and protons

B

The atomic number represents the total number of protons

C

Noble gases are all chemically stable elements

D

The element mercury is denoted by the chemical symbol Hg

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