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:
B. An increase in gene flow between the bird populations.
Explanation:
Answer:
True
Explanation:
<em>Research that seeks to understand the source of water pollution for given body of what is indeed an example of applied science.</em>
Applied science is a branch of science that deals with the application of scientific knowledge to solve real-life problems. This is as opposed to natural science which deals mainly with the physical world and is largely theoretical. <u>When the theoretical knowledge obtained from natural science is put to real use to solve existing problems, it is termed applied science. </u>
