How are elements arranged in the Periodic Table?

2 answers:

5 0

A. By their properties.

5 0

A, I think. Sorry if I'm incorrect.

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trasher [3.6K]

Do you still need this answer?

8 0

4 years ago

harkovskaia [24]

You can tell if each side of the equation has the same molar mass.

3 0

3 years ago

Karolina [17]

Sorry, haven't came across that as of yet.

7 0

4 years ago

Allisa [31]

Answer:

$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^2$

Explanation:

The $Mn^{+3}$ has 22 electrons arround the nucleous. Its ground state configuration following the diagonal rule is:

$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^2$

In term of the previous noble gas:

$[Ar] 4s^2 3d^2$

7 0

3 years ago

pychu [463]

Answer:

it gives CH2OH-CH2OH(ethylene glycol +MnO2

Explanation:

3 0

3 years ago