Answer:
Lithium develops a positive charge because it has one valence electron. Instead of lithium trying to steal 7 electrons from other elements to obtain an octet, it is easier to lose its one electron to become stable. Because neutral atoms contain the same amount of protons and electrons, when lithium loses one electron, there is one more proton than electrons.
In other words
Lithium has 3 protons and 3 electrons in its neutral state, but it loses one electron to become stable so it now has 3 protons and 2 electrons, and there is one more proton than electrons: +3 -2 = +1 charge
Explanation:
Answer: gas are well separated with no regular arrangement.
liquid are close together with no regular arrangement.
solid are tightly packed, usually in a regular pattern.
its just gas liquid and solid pls make me brainliest
Explanation:
Answer:
Please see the attached pictures.
Explanation:
☆ To ensure that each carbon has 4 bonds, fill the other bonds with Hs.
The amount of heat needed to vaporize the given amount of water is the product of the amount in grams and the latent heat of vaporization in cal per gram. That is,
H = (540 calories / gram)( 500 grams) = 270,000 cal
Thus, the heat needed is 270, 000 calories. The answer is letter C.
The statement that best describes waves is B. Waves cannot propagate without a medium
