#1. An element or ion that has lost two electrons must have a net charge of 2+, because it has two more protons than electrons, therefore the answer is Mg2+
#2. aluminum ions have an oxidation state of 3+ and fluoride has an oxidation state of 1-, therefore I’m order for the charges to cancel you need 3 fluoride ions.
Therefore, the answer is AlF3
Answer:
20 Km/hr
Explanation:
You have to divide the Km and Hr
I hope it help you
Answer is: quantum theory (mechanics).
<span>Quantum theory is theory in </span>physics<span> which describes </span>nature<span> of energy levels of </span>atoms<span> and </span>subatomic particles. Quantum theory is formulated in different particularly developed mathematical formalisms.
According to this theory energy<span> of a system may be restricted to </span>discrete values<span> (</span>quantization<span>).</span>
