Compare the electron configurations of hydrogen, lithium, and sodium. Why do you think these elements are grouped in the same family?

Question

21-12-2019
Chemistry

contestada

Compare the electron configurations of hydrogen, lithium, and sodium. Why do you think these elements are grouped in the same family?

Respuesta :

Otras preguntas

Simplify the expression. Write the answer using scientific notation. (2 x 10^13)^-2

Rodney and their roommates are making homemade pizza for dinner. Rodney tells his roommates that he would like for his slice to be cut at a 100 degree angle. Th

National anthem has tied all the diverse groups of people with a common thread of nationality Justify the statement

Identify the constant of proportionality from the table. х у 2 18 5 45 7 63 8 72 A. 18 B. C. 9 0 D. 2 < PREVIOUS

Please help! Thank you.

Design a sequential circuit with two flip-flops A and B and one input X. When X = 0, the state of the circuit remains the same. When X = 1, the circuit goes thr

Sydney finished all his work on time, but many of his teammates still struggled to complete their assignments. What should he do? a) Not to be distracted. They

** PLSS HELP QUICK I’LL MARK BRAINLIEST **

On a map, two mountains are 5 7/8 inches apart. If 1/2 of an inch on the map represents 80 miles, then how many miles apart

Convert the following moles to grams :) 1. 2.4 moles sulfur 2. 1.5 moles BeI2 3. 7.5 moles C6H12O6

1014caroline 1014caroline · Answer 1 · 2019-12-22T16:55:45+01:00

1014caroline 1014caroline

22-12-2019

Answer:

they all have the same amount if valance electrons

Explanation:

hydrogen has an electron configuration of 1.

lithium has 2-1

sodium has 2-8-1

their valance electrons on the outer shell all have 1 electron, which is why they are grouped in the same family

Answer Link

Tringa0 Tringa0 · Answer 2 · 2021-10-07T10:31:19+02:00

These elements are grouped in the same family because they have the same number of valence shell electrons.

Given:

Three elements: hydrogen. lithium and sodium.

To find:

The reason to group these elements in the same family

Solution:

Hydrogen has an atomic number of 1. The electronic configuration of a hydrogen atom:

[tex][H] = 1s^1[/tex]

lithium has an atomic number of 3. The electronic configuration of a lithium atom

[tex][Li] = 1s^22s^1[/tex]

Sodium has an atomic number of 11. The electronic configuration of a sodium atom

[tex][Na] = 1s^22s^22p^63s^1[/tex]

In all the three element's electronic configurations there is one thing common that is only 1 electron is present in their respective valence shell.

And the elements coming under the same group or family have the same number of valence shell electrons and similar chemical properties.

Learn more about electronic configuration here:

brainly.com/question/5524513?referrer=searchResults