Which of the following is not true about atoms? A. Atoms are the basic unit of life. B. Atoms are made up of subatomic particles such as anion, cation, and ion. C. Atoms cannot be created nor destroyed.
B
What are valence electrons? A. the number of electrons gained by an atom B. the electrons in the innermost energy level of an atom C. the electrons in the outermost energy level of an atom
C
What is the easiest way to find the number of valence electrons?
By checking out the elements' group number in the periodic table.
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