All categories

4 years ago

State the relationship between electron configuration and location of an element in the period table

Chemistry

1 answer:

inn [45]4 years ago

5 0

Answer:

elements in same group have same valence electron.

period of element is equal to valence shell

Explanation:

if the elements are in a same group then they will be having same number of valence electron.

the period of an element in periodic table is equal to the valence shell of the element. that is if the valence electron are in 3 rd shell then the element will be in third period.

You might be interested in

Gerry is looking at salt under a powerful microscope and notices a crystalline structure. What can be known about

Allushta [10]

Answer:

The atoms are vibrating in place.

Explanation:

One of the properties of an ionic substance is the possession of a crystalline structure. As Gerry observed the salt under a microscope, he discovered that it has a crystalline structure. Crystalline salts are all ionic in nature, hence the salt observed by Gerry is an ionic salt.

Solids containing a definite crystalline structure always has their particles vibrating in place. This is immediately evident as Gerry looks at the salt through a microscope.

7 0

4 years ago

HELP ASAP!!!!!!!!!!

weqwewe [10]

Answer:

D) food that a chef seal in a plastic bag and cook under a controlled temperature condition.

Explanation:

Sous vide, also known as low temperature long time cooking, is a method of cooking in which food is placed in a plastic pouch or a glass jar and cooked in a water bath for longer than usual cooking times at a precisely regulated temperature.

8 0

3 years ago

Help please help me

Alenkasestr [34]

Answer: It completely dissociates in water is a characteristic of strong acid.

Explanation:

An acid which dissociates completely to give hydrogen ions $(H^{+})$ is called a strong acid.

For example, HCl is a strong acid and it dissociates completely as follows.

$HCl \rightleftharpoons H^{+} + Cl^{-}$

Strong acids are able to conduct electricity in water as more number of ions are present in the solution as compared to the ions present in a solution of weak acid.

Strong acids increase the concentration of $H^{+}$ ions.

Thus, we can conclude that it completely dissociates in water is a characteristic of strong acid.

8 0

4 years ago

Which element has three unpaired electrons in its p orbital? carbon (atomic number 6) oxygen (atomic number 8) nitrogen (atomic

Elis [28]

Answer: N (atomic number 7)

Explanation:

1) Due the electron distribution of each, taking into account Hund's rule to deal with pairing of electrons.

2) Hund's rule: each subshell orbital is occupied with single electrons of parallel spin before double occupation occurs.

That is, before any one orbital is doubly occupied, every orbital in a subshell is singly occupied with one electron, and all the electrons in singly occupied orbitals have the same spin, which means that they are unpaired.

3) Distributions:

a) C (atomic number 6) ⇒ 6 electrons:

⇒ 1s² 2s² 2p² ⇒ 1s² 2s² 2p ↑ ↑ : as per Hund's rule the two electrons on 2p are unpaired.

b) O (atomic number 8) ⇒ 8 electrons

⇒ 1s² 2s² 2p⁴ ⇒ 1s² 2s² 2p⇅ ↑ ↑: as per Hund's rule the two 2p electrons are unpaired

c) N (atomic number 7) ⇒ 7 electrons

1s² 2s² 2p³ ⇒ 1s² 2s² 2p↑ ↑ ↑: as per Hund's rule, the three 2p electrons are unpaired, so this is the answer to the question.

c) Be (atomic number 4) ⇒ 4 electrons

⇒ 1s² 2s² ⇒ none p electron.

5 0

4 years ago

Read 2 more answers

Draw the structure of 1-ethyl-2,2-dimethylcyclohexane

bogdanovich [222]

The structure is in the attached photo. I’ve drawn the compound and it’s skeletal compound but they are of the same molecule.

4 0

4 years ago