gracieorman4
10.11.2020 •
Chemistry
What is the mass of a substance
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Ответ:
The Molar mass of an element (compound) is the mass in grams in one mole of that substance, a property expressed in units of grams per mole (g/mol)
Explanation:
Ответ:
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z). Hope this helps! PLEASE GIVE ME BRAINLIEST =)