Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
Answer:
D3O® was invented in 1999 by British engineer Richard Palmer. An avid snowboarder, he was looking for a way to protect himself from the many bumps and bruises he suffered from frequent wipeouts on his board. He found his answer in D3O,® which was named after the lab in which it was discovered.
Explanation:
The answer is Sex-Linked Traits
Answer: float
Explication: If the density is less than the waters then it will float
The time period was called the Hadean Eon, and the rocks themselves are nearly 4.4 billion years old
