Identifying Atoms

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​Carbon-12

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#of electrons=6

Hydrogen-1

# of protons=1

# of electrons=1

# of neutrons=0​

Fill in the correct information about of oxygen atom

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​# of protons=

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​What is inside the box of elements in the PTable?

​The atomic number is use to arrange the elements in order in the periodic table.

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The atomic number tells the number of protons of an element​

​​What is the atomic number?

Atomic mass= the number of protons and neutrons inside the nucleus of an atom

Mass number = #p⁺ + #n^-​

​​Atomic mass or Mass Number

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​Atomic mass of an element=

​Remember:

Atomic number of an element =

# of protons = # of electrons​

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