6.4---What's the Chemical Symbol?

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neutrons

The orange circles in nucleus of the atom are the...

electrons

The yellow circles found in the outermost shell (energy level) of an atom are the...

subtract the atomic number and atomic mass

You must ________ of an element to figure out the number of NEUTRONS in an element.

elements

A limited number of _______ form the largest portion of Earth's crust and oceans.

chemical symbols

Elements can be represented by...

atomic number

Scientists use the ________ to figure out the number of protons and electrons in an element.

number of protons

The atoms of one element differ from those of another element in the...

negative charge

The electron of an atom has a...

neutral charge (no charge)

The neutron of an atom has a...

positive charge

The proton of an atom has a...

atomic mass

The red arrow is pointing to the __________ of an element.

atomic number

The red question mark is pointing to the _________ of an element.

protons

The yellow circles in nucleus of the atom are the...

aluminium