Answer: 1s2 2s2 2p6 3s1 3p1
Explanation:
Excitation of an electron is an elevation in energy level of the valence electron above the ground state electron.
When an electron gains energy, usually the outermost electron it moves from a orbital of lower energy to a orbital of higher energy, the element is in an excited state.
The electron configuration of ground state of magnesium is 1s2 2s2 2p6 3s1 3p2, when it gains energy the electronic configuration is 1s2 2s2 2p6 3s1 3p1 the excited state of Magnesium this is because the last electron moves from the 3S orbital to a higher energy orbital 3P
Answer:
1.566x10²⁴ atoms of Cl
Explanation:
In Carbon tetrachloride, CCl₄, you have 4 moles of Cl per mole of CCl₄. To solve this question we must find the moles of CCl₄ in order to find the moles of Cl. Using Avogadro's number we can solve the chlorine atoms:
<em>Moles CCl₄: 153.82g/mol</em>
100g * (1mol / 153.82g) = 0.65 moles CCl₄
<em>Moles Cl:</em>
0.65 moles CCl₄ * (4 moles Cl / 1mol CCl₄) = 2.6 moles Cl
<em>Atoms Cl:</em>
2.6 moles Cl * (6.022x10²³ atoms / mol) =
<h3>1.566x10²⁴ atoms of Cl</h3>
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Answer:
84.2 grams
Explanation:
you have to multiply 8.42x10^18 to get the answer above
