Chemistry, 31.01.2020 10:56 NobleWho

Which of the following elements is in the same period as phosphorus? a. carbonb. magnesium c. nitrogend. oxygen

Answers: 3

Show answers

Answers

Answer from: brittanysanders

Magnesium. (B.)

Period is the horizontal row in the periodic table

Answer from: ssalazc1593

Magnesium. (B.)

Period is the horizontal row in the periodic table

Answer from: aupein

The answer is B

Explanation:

Elements in the periodic table are arranged according to there atomic numbers in groups (vertical columns) and periods (horizontal rows). Elements having the same number of valence electrons are in the same group in the periodic table while elements in the same period have the same number of electron shells.

Phosphorus has 3 electron shells, hence the right element in the options provided must have 3 electron shells in order to be in the same period with phosphorus.

Carbon has 2 electron shells hence it is found in period 2Magnesium has 3 electron shells hence it is found in period 3Nitrogen has 2 electron shells hence it is found in period 2Oxygen has 2 electron shells hence it is found in period 2

From the above, we can deduce that magnesium is found in the same period (period 3) with phosphorus.

Answer from: nataliatf9833

The answer is B

Explanation:

Phosphorus has 3 electron shells, hence the right element in the options provided must have 3 electron shells in order to be in the same period with phosphorus.

From the above, we can deduce that magnesium is found in the same period (period 3) with phosphorus.

Answer from: Quest

The dispersed phase is liquid and dispersed medium in milk is liquid

Answer from: Quest

Where are the following questions

Another question on Chemistry

Chemistry, 22.06.2019 02:30

List four observations that indicate that a chemical reaction may be taking place

Answers: 1

Answer

Chemistry, 22.06.2019 03:20

What are fructose and glucose an example of?

Answers: 1

Answer

Chemistry, 22.06.2019 07:30

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Answers: 3

Answer

Chemistry, 23.06.2019 01:30

The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia

Answers: 2

Answer

You know the right answer?

Which of the following elements is in the same period as phosphorus? a. carbonb. magnesium c. nitrog...

Questions