<h3><u>Answer;</u></h3>
CO3^2- and O3
<h3><u>Explanation;</u></h3>
- Ozone, O3 is a molecule composed of three oxygen atoms joined together. Two oxygen atoms joined together form the basic oxygen molecule O2.
- A polyatomic ion is a charged particle which has two or more atoms held together by covalent (sharing of pairs of electrons) bonds.
- Carbonate (CO3^2-) is an example of polyatomic ion. It can not be adequately described using Lewis structure.
The answer to this is letter D.
Chromium's electron configuration is <span>1s2 2s2 2p6 3s2 3p6 3d5 4s1, where the last electron is in the s orbital with only 1. As for Li, it is found in the group 1 metals, and it is a fact that all elements under this group has the their last electron to be in the s orbital with only one electron in their outermost shell.
</span>The electron configuration<span> associated with the lowest energy level of the atom is referred to as </span>ground state and each electron ion is in the lowest energy level possible. When the moment comes that electrons go into a higher level of energy, that is what we call the excited state.
Answer:
The electronic configuration of Na is b
Answer: 
Explanation:
Given
Initial mass 
half-life is 
At any time the left amount is given by
Answer:
It is temperature dependent only
Explanation:
For any system in equilibrium, the molar concentration of all species on the right hand side are related to the molar concentrations of those at the left side by a constant known as the equilibrium constant.
- The equilibrium constant is a constant at a given temperature.
- The constant is temperature dependent only.
- It is not dependent on the values of concentration or pressure of a system.
