2 years ago

How many electrons are in the n = 2 shell of a magnesium atom?

Chemistry

1 answer:

Montano1993 [528]2 years ago

8 0

Answer:

eight

Explanation:

That means there are 12 electrons in a magnesium atom

hope this helps

You might be interested in

Question 1 (1 point)

ladessa [460]

Answer:D - adding a catalyst

Explanation:

4 0

3 years ago

If aluminum has a mass of 22.3 g, how many liters of oxygen gas are required at STP?

IceJOKER [234]

Answer:

27.8

Explanation:

6 0

2 years ago

I need to know the answer to that

Tresset [83]

im not sure which one to answer, and i can hardly see the text.

8 0

3 years ago

given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters

Vesna [10]

Frequency, f = v / λ

f = 2.998 * 10⁸ / 3.55*10⁻⁸

f = 8.445 * 10¹⁵ Hz.

8 0

3 years ago

Three blocks of metal at the same temperature are placed on a hot stove. Their specific heat capacities are listed below.Rank th

JulijaS [17]

Answer:

Copper>Steel>Aluminium

Explanation:

Hello,

Since the heat capacity accounts for the required heat to increase by 1°C, 1 kg of the metal, copper is the one that has the lower heat capacity, it means that it requires the least amount of energy to warm up (increase its temperature), this could be substantiated via the mathematical definition of heat capacity:

$H=mC(T_2-T_1)$

Solving for $T_2$ :

$T_2=T_1+\frac{H}{mC}$

It means that the lower the heat capacity, the higher the final temperature.

Best regards.

7 0

3 years ago