The element over has 7 (OPTION D) valence electrons. This is since on the 2nd shell, two electrons accounting the S orbit of the 2nd shell (2s²)and 5 occupy the p orbital (2p⁵) , because that a full of 7 valence electron (1s² 2s² 2p⁵)

7 Valence Electrons.

You are watching: How many valence electrons are represented in the following electron configuration? 1s22s22p5

Explanation:

The Valence electrons are described as the number of electrons in the outermost shell of an atom.

When provided the electronic configuration, the valence have the right to be calculate by adding the superscript of the hugest number coefficient.

The highest number coefficient in this electronc cnfiguration is 2. The amount of it"s superscript is 2 (in 2s²) and 5 ( in 2p⁵). That is 2 + 5 = 7

How to check the answer?

The atom offered has 9 electron ( 2 + 2 + 5).

The K covering is being occupied by 2 electrons, the next shell; M covering which deserve to occupy maximum of 8 electrons is being lived in by 7 electrons ( 9 - 7). And also in this atom, the M shell is the outermost shell.



Answer from: josephvcarter

Answer : The most likely charge of one ion formed from one atom will be, (-1) charge.

Explanation :

The given electronic configuration is,

*

The variety of electrons = 2 + 2 + 5 = 9 electrons

An element is, Florine (F)

For attaining the stable electronic configuration, we need one an ext electron. As soon as we are adding an electron in the given electronic configuration climate it will be negatively charged (-1).

The stable electronic configuration will be,

*

The facet Florine will certainly be an anion and also have negative charge,

*

Hence, the most most likely charge of an ion developed from an atom will certainly be, (-1) charge.



Answer from: sierravick123owr441
Answer is: d) 7.Electron configuration: 1s²2s²2p⁵.Valence electrons space in 2s and 2p orbitals.Valence electrons are outer shell electrons (transition metal deserve to have a valence electrons in an inner shell) that is connected with an atom and they have the right to form chemical bond. Valence eletrons determine chemical proporties of element.

Answer from: cloudyYT
Fluorine due to the fact that it is a halogen (non-metal), then it would must bond with a metal in bespeak to kind an ionic bond.Fluorine would therefore need an aspect from any kind of of the metal groups to bond through in bespeak to form an ionic link e.g. Team One (Sodium or Lithium) or group Two (Magnesium or Calcium) or group Three (Aluminum) or a Transitional metal (Copper or Vanadium).
*


Answer from: lizzyhearts
It will certainly be -1 since in valence shell there will certainly be 7 electron so it will certainly take 1 from other atom to finish its outer shell
Answer from: chaseashley24
No that’s is the electronic configuration for fluorine.
Answer from: davisnaziyahovz5sk
What is this supposed to be?

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