cassidy100117
16.10.2020 •
Chemistry
This diagram represents a neutral atom of fluorine-19.
Which best describes the structure of fluorine-19?
A. 2 electrons in the first energy level; 7 electrons in the second energy
level
B. 2 electrons in the first energy level; 8 electrons in the second energy
level
C. 9 protons and 9 neutrons in the nucleus
D. 10 protons and 9 neutrons in the nucleus
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Ответ:
Definition of molecular formula
Definition of molecular formula : a chemical formula that gives the total number of atoms of each element in each molecule of a substance — compare structural formula.