Chemistry, asked by ginueshubm, 5 hours ago

An atom has atomic number 7 and has charge -1. What is the number of valence electrons?

Answers

Answered by thilakamaruthu

2

Answer:

Group number or using proton number.

Explanation:

i hope it will helps you

Answered by purvamahajan040

0

Answer:

6

Explanation:

electronic configuration is 2,5 and one electron is gain due to - charge so electronic configuration become 2,6 and valance electron is 6.

Previous Question

Next Question

Similar questions

Physics, 3 hours ago

• A contact force that opposes the relative motion between two surfaces in contact is (a) muscular force (b) frictional force (c) electrostatic force (d) magnetic force ...

English, 3 hours ago

Tagore's Activity Tagore's writing is highly imagistic deeply religious and imbued with his love of nature and his homeland. His work are classics renowned for their lyrical beauty and spiritual poignancy. His poems are actually song texts as he composed a melody for them. The musical aspect of poems is at times lost in translation. Please tell the answer..

Chemistry, 3 hours ago

name the structure of the following ...

Social Sciences, 5 hours ago

please answer fast this is useful ...

Biology, 5 hours ago

19. Achcha technique which involves Deliberate manipulation of genes Within on between spaces is called (a) Gene therapy (b) Hybridoma technology (c) Tissue culture (d) Genetic engineering...

Chemistry, 8 months ago

write the electronic configuration of Na=11. what is it's valency ...

Math, 8 months ago

A rectangular water tank 4.8×2.5m×80cm .Find its volume in cubic decimetres and in litres.

Social Sciences, 8 months ago

how many days /minutes /second in year...