The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized
Answer:
The difference in the number of protons and neutrons in atoms account for many of the different properties of elements.
Atomic number shows the number of protons in an atom's nucleus. If the atomic number is 30, then it has 30 protons. The question says it is neutral, so it must have the same amount of protons and electrons.
A is the correct answer based on this.
Answer:
C. product costs and expensed when the goods are sold
Explanation: