Is matter is anything that has color and takes up

No.

Explanation:

Matter is everything around you.  Matter is defined as anything that has mass and takes up space (it has volume).

It doesn't matter if it has color or not. It just has to have mass and take up space.

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Yes

Explanation:

Matter is anything that has mass and takes up space. Anything you can see, touch, taste, or smell is matter.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.