Question

Write electronic configuration of this element X. 34X79 (atomic number is 34, atomic mass is 79).Find Group, Period and block. Write justification for every answer ?

Answer 1

Explanation:

Write the following sentences and give the function of each underlined word.

a. Yellow describes snake and crawled tells of an action.

b. Shoaib is the name of a person and large describes the company.

c. Tap is the name of a thing; yesterday tells when it was leaking (helps describe the action).

d. Me stands in place of a noun (the person speaking) and morning is the name given to the early

part of the day.

e. And joins two parts of the sentence; are fed tells of an action (continuing).

f. Saw tells of a past action; in shows the relationship between peacock and forest.

g. Oh! Shows a feeling or emotion; new describes the car.

Answer 2

The element X is having the atomic number 34 then its

• electronic configuration - 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p4  
• block - P
• group - 16
• period - 4th

It is given that the element 34X79, which means has atomic number is 34, atomic mass is 79 then its electronic configuration by Aufbau's principle :

• 1s2
• 2s2 2p6

• 3s2 3p6 3d10
• 4s24p4

so, it is - 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p4

Block:

• The last electron enters in the p orbital which means it is a p-block element.

Period:

• the valence electrons entering into the 4th shell (n=4) the element belongs to 4th period

Group:

• The number of electrons in ns + np + 10
• here 4s2 in ns, 4p4 in np

then the group would be

= 2+4+10

= 16

Thus, The element X is having the atomic number 34 then its

• electronic configuration - 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p4  
• block - P
• group - 16
• period - 4th

Learn more:

https://brainly.com/question/17818894