Write the electronic configurations for mn, mn2+, mn4+, mn6+, and mn7+

The electronic configurations are written below.

Explanation:

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.  Number of electrons in an atom is determined by the atomic number of that atom.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

We know that:

Atomic number of Manganese = 25 = Number of protons

Number of electrons = Number of protons - charge

Number of electrons = 25

Electronic configuration of Mn :

Number of electron = 25 - (+2) = 23

Electronic configuration of

Number of electron = 25 - (+4) = 21

Electronic configuration of

Number of electron = 25 - (+6) = 19

Electronic configuration of

Number of electron = 25 - (+7) = 18

Electronic configuration of

Hence, the electronic configurations are written above.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance