The answer is letter A, bacterial decay.
We know that C has a formal charge of +4 while each O element
has a formal charge of -2, therefore the formal charge of X is:
X + 2 – 2 * 3 = 0
X + 2 – 6 = 0
X = 4
<span>So X has a group number of 4.</span>
The number of protons in the nucleus of the atom is equal to the atomic number. The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.
Hope it helped
Answer:
The mass of an object is the same no matter where it is, but the weight of an object changes with the location of that object. For example, the weight of an object on the Moon is 1/6th that of the same object on Earth, while the mass of that object is exactly the same in both places.
Explanation:
Sited: https://howthingsfly.si.edu/ask-an-explainer/what’s-difference-between-mass-and-weight
<span> The formula for </span>measuring<span> density is Density = </span>Mass/Volume<span>, or D=M/V. The / means “per” or “for each,” which in math is the same as “divided by.”</span>
