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andrew-mc [135]
3 years ago
11

Why are there only two elements in the first period of the periodic table?

Chemistry
2 answers:
noname [10]3 years ago
8 0
The reason why there are only two elements in the first period of the periodic table is because hydrogen is the main reactant while helium is the main non-reactant.
Solnce55 [7]3 years ago
5 0
The first period has less elementsthan any other periods in the periodic table. There are only two elements in the first period: hydrogen and helium. We can explain why there is lesselements in the first row in modern theories of atomic structure. ... Theseelements can only hold two electrons, both in the 1s orbital
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MgSO4 x 7H2O:
natka813 [3]

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Explanation:

5 0
3 years ago
Read 2 more answers
Maya prepared 0.50 liters of a solution by dissolving 2.0 moles of an unknown compound in water. What is the molarity of the sol
Elena-2011 [213]

Answer:

4 M

Explanation:

Molarity can be represented by the following ratio:

Molarity = moles / volume (L)

Since you have been given both the mass and volume, you can plug the values into the equation and solve for molarity.

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6 0
2 years ago
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astraxan [27]
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The answer is D.

Hope this helps :) ~
8 0
3 years ago
Food contains chemical potential energy that the body uses. How do you think that the body gains this energy
defon
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How many particles are in 1 mol of carbon? 1 mol of lithium? 1 mol of eggs? will 1 mol of each of these substances have the same
andrezito [222]
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