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Softa [21]
3 years ago
11

How many electrons are in mg2+?

Mathematics
1 answer:
Oxana [17]3 years ago
7 0
(Pay attention to the subject you're choosing, this is supposed to be in the Chemistry section, not here in the Mathematics)
On the periodic table, the Magnesium Mg is located in period 3, group 2. So it got 12 electrons.
So to become the cation Mg2+, the Magnesium has lost 2 electrons during it's formation.
So 12-2=10.
So there's 10 electrons in the Cation magnesium Mg2+

Hope this Helps! :)
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Find the value of the expression x3−y3+x2+y2+3 by substituting x=−2 and y=1.
vaieri [72.5K]

\\ \sf\dashrightarrow x^3-y^3+x^2+y^2+3

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8 0
3 years ago
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What is the true solution to 3 In 2+In 8 = 2 In(4x)?<br> O x=1<br> O x=2<br> O x=4<br> Ox=8
Novosadov [1.4K]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue
stepladder [879]

Answer:

9 right-handed gloves and 3 left-handed gloves were sold.

Step-by-step explanation:

Given:  In one month, 12 gloves were sold for a total revenue of \$561.

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To find: How much of each type of gloves did they sell?

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Now, cost of each right-handed gloves =\$45

cost of each left-handed gloves =\$52

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So, we get

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Also,  in a month 12 gloves were sold.

So, we get

x+y=12\:\:\:...(ii)

Now, from (ii) we get, x=12-y.

Putting x=12-y in equation (i), we get

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7 0
3 years ago
Given the function f(x)= 14x^2 + 5x - 1 answer the question if you could change the 14 to any other number, but the rest has to
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3 years ago
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