Answer:
cooler denser air produces an area of higher air pressure and moves in under rising air
Explanation:
"Compound" is the one among the following choices given in the question that is a <span>substance formed by the chemical joining of two or more elements in definite amounts. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.</span>
1.) The number of protons in the atomic number of the element. Like Carbon has 6 protons because it’s atomic number is 6. The atomic number is in the top left corner of most periodic tables.
2.) Silicon(Si)
3.) The number of electrons should be the same as the number of protons. If you are doing a Bohr model you put 2 electrons in the first ring, eight in the second ring and 18 in the third. Carbon should have 6 in its outer shells.
4.) Potassium(K)
5.) To fins neutrons subtract the atomic weight from the atomic number.
6.) Hydrogen(H)
7.) 30 neutrons, 56-26
8.) 17 protons, 17 electrons in the outer shell, and 18 neutrons
A, this is my guess because topsoil is made mostly of humus(sand, silt, clay and broken down organic matter) and the rest of the answers don’t make sense, hope this helps :]
Answer:
4 I think
Explanation:
some elements are dangrous
