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
Lyrx [107]
3 years ago
8

Refer to the electron distribution to answer 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹. What would be the period or series number of

the atom?
A.6
B.5
C.4
D.3

I need the answer now plss help​
Chemistry
2 answers:
maw [93]3 years ago
8 0
B=5 is the answer mark me brainly
Salsk061 [2.6K]3 years ago
5 0

Answer:

C.5

Explanation:

A number of electrons present in valence shell of penultimate Shell represents the group of elements.

For s block elements: no.of group=number of valence shell electron.

p block elements: no. of group= 2 + 10 + number of valence electrons.

d block elements: no. of group= number(n-1)d electrons + number of electrons in nth shell.

Here, the differential electron is in p orbital hence, it belongs to p block

No. of group= 2+ 10 + 3=15 i.e 15th group or VA group.

You might be interested in
Bromine (Br) belongs to the halogen family. Based on the location of the halogens, how many valence electrons does bromine have?
Amanda [17]

Answer:

D. 7

Explanation:

The halogens are found in Group 7 of the Periodic Table. If Bromine is a halogen, then that means it would be found in Group 7. Also, elements in Group 7 have 7 electrons in its outer shell, Bromine would have 7 electrons in its outer shell.

3 0
3 years ago
Read 2 more answers
Please help! I need an answer ASAP, I will be marking brainliest.
asambeis [7]
B because A is for radios of course and C is thermal energy and D is radioactive
6 0
3 years ago
Read 2 more answers
I will mark brainliest<br> What are dams? How do they help conserve water?
Gre4nikov [31]

Answer: what are dams?

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation.

how does it conserve water?

well there could be many ways it can conserve water but I will tell you the most important.

When the water level increases they open gates in order to send out water. These dams allow us to store and not to drain water into oceans soon. A DAM is a barrier constructed to hold back water and raise its level

Explanation:

I hope this helps plz click the heart and mark me braines!

have a wonderful day!

7 0
3 years ago
Explain acid rain and it effects to the environment​
PSYCHO15rus [73]

Answer:Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

Explanation:

Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

4 0
3 years ago
Which condition is indicated by nervous tension, mood swings, headaches, bloating, and irritability?
butalik [34]
The best and most correct answer among the choices provided by your question is the third choice or letter C.

Premenstrual syndrome<span> (</span>PMS<span>) has a wide variety of </span>symptoms, including mood swings, tender breasts, food cravings, fatigue, irritability and depression. It's estimated that as many as 3 of every 4 menstruating women have experienced some form of premenstrual syndrome<span>. </span>Symptoms<span> tend to recur in a predictable pattern.</span>


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
Other questions:
  • The nucleus of an atom contains at least one<br> proton.<br> True or false
    9·1 answer
  • The pH of a vinegar solution is 4.15. What is the H3O+ concentration of the solution?
    8·2 answers
  • What is emitted when the radioactive nucleus of 131 53i decays to form the stable isotope of xenon 131 54xe?
    13·1 answer
  • Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas fo
    6·1 answer
  • Convert a pressure of 0.0248 mm Hg to the equivalent pressure in pascals (Pa).
    9·1 answer
  • An Arrhenius base yields which ion as the only negative ion in an aqueous solution?
    14·1 answer
  • Identify the type of each reaction in the copper cycle.
    9·1 answer
  • . Calculate the pH of a solution made by dissolving 1.87 g of sodium caproate, NaC6H11O2, Kb =
    7·1 answer
  • What conditions prevail (are mostly found) in the rain shadow area?
    13·1 answer
  • A chemist measures the solubility of lead(ii) bromide in water to be 2. 96 g/l. calculate the ksp value for the solid. the ksp v
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!