1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
morpeh [17]
3 years ago
7

What is the name of the element that has electrons arranged 2,8,2 ​

Chemistry
2 answers:
poizon [28]3 years ago
7 0

Answer:

The metal element → Magnesium (Mg)

Alexus [3.1K]3 years ago
6 0

Answer:

magnesium

Explanation:

magnesium has electrons arranged 2,8,2

You might be interested in
In this lab, you will use the flame test to identify the metal ion in two boxes of unidentified fireworks. Write an investigativ
Rasek [7]
In a flame photometric analysis, salt solution is first vaporized using the heat of flame, followed by this electrons from valance shell gets excited from ground state to excited state. Followed by this de-excitation of electron bring backs electrons to ground state. This process is accompanied by emission of photon. The photon emitted is characteristic of an element, and number of photons emitted can be used for quantitative analysis. 

<span>Following are the investigative question that you can answer by doing this experiment.
</span>1) What information can be obtained from the colour of flame?
2) <span>State the relationship between wavelength, frequency, and energy?
</span><span>3) Can you identify the metal present in unknown sample provided?
4) How will you identify amount of metal present in sample solution?
5) </span><span>Why do different chemicals emit light of different colour?</span><span>

</span>
6 0
3 years ago
Read 2 more answers
Match the following rocks with the correct type obsidian intrusive igneous granite organic sedimentary conglomerate clastic sedi
Marizza181 [45]
Obsidian - extrusive igneous
granite - clastic sedimentary
conglomerate - intrusive igneous
evaporite -  chemical sedimentary 
coal - organic sedimentary
marble - metamorphic
8 0
3 years ago
Read 2 more answers
Which enzyme "unzips" DNA by breaking hydrogen bonds that hold the bases together?
KonstantinChe [14]
A- *enzyme* helicase
4 0
2 years ago
Read 2 more answers
Write a statement that shows how the charge of an ion relates to the number of electrons transferred.
DanielleElmas [232]

Answer:

Q = ne

Explanation:

Ler n be the number of electrons transferred and Q be the charge of an ion.

The net charge on the object is then given by :

Q = ne

Where

e is the electronic charge

Hence, the charge of an ion relates to the number of electrons transferred is equal to Q = ne.

7 0
3 years ago
Please help...awarding brainliest if correct and lots of points.
abruzzese [7]

Silver chloride produced : = 46.149 g

Limiting reagent : CuCl2

Excess remains := 3.74 g

<h3>Further explanation</h3>

Reaction

silver nitrate + copper(II) chloride ⇒ silver chloride + copper(II) nitrate

Required

silver chloride produced

limiting reagent

excess remains

Solution

Balanced equation

2AgNO3 (aq) + CuCl2 (s) → 2AgCl(s) + Cu(NO3)2(aq)

mol AgNO3 :

= 58.5 : 169,87 g/mol

= 0.344

mol CuCl2 :

=21.7 : 134,45 g/mol

= 0.161

mol ratio : coefficient of AgNO3 : CuCl2 :

= 0.344/2 : 0.161/1

= 0.172 : 0.161

CuCl2  as a limiting reagent

mol AgCl :

= 2/1 x 0.161

= 0.322

Mass AgCl :

= 0.322 x 143,32 g/mol

= 46.149 g

mol remains(unreacted) for AgNO3 :

= 0.344-(2/1 x 0.161)

= 0.022

mass AgNO3 remains :

= 0.022 x 169,87 g/mol

= 3.74 g

8 0
3 years ago
Other questions:
  • When a 5.00-g sample of rbbr is dissolved in water in a calorimeter?
    7·1 answer
  • Given the standard entropy values in the table, what is the value of º for the following reaction?
    11·1 answer
  • I need help with these questions, please!
    8·1 answer
  • When working with scientific data, the average of a data set is called the
    14·1 answer
  • Appreciate every help~ thank you ❤️
    9·1 answer
  • Plant cells and animal cells have many of the same organelles, but only plant cells have
    9·1 answer
  • How much volume (in cm3) is gained by a person who gains 12.3 lb of pure fat?
    11·1 answer
  • Please help me on this.
    8·2 answers
  • Please hurry!!! And help!!
    5·1 answer
  • Explain how atoms organize to create larger structures?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!