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
drek231 [11]
3 years ago
6

Which element has 4 energy levels and 7 valence electrons

Chemistry
1 answer:
antoniya [11.8K]3 years ago
5 0

Answer:

Beryllium 4 2

Boron 5 3

Carbon 6 4

Nitrogen 7 5

You might be interested in
In H2O, the 2 is called a
GaryK [48]
2 hydrogen atoms hope this helps
6 0
3 years ago
Find the number of moles in 6120 ions of NaCl . Round your answer to two decimal places. Input your answer as 1.03E23, which is
FrozenT [24]

Answer:

Explanation:

NaCl = Na⁺ + Cl⁻

6120 ions of NaCl will contain 3060 ions of Na⁺ and 3060 ions of Cl⁻ , forming 3060 molecules of NaCl .

6.02 x 10²³ molecules of NaCl = 1 mole

3060 molecules of NaCl = 3060 x 10⁻²³ / 6.02 moles

= 508.30 x 10⁻²³ moles

= 5.08 x 10⁻²¹ moles

Answer : 5.08E-21 moles  .

5 0
3 years ago
What happens to colors in sunlight when droplets of water in the atmosphere act like prisms?
andrew-mc [135]
Dispersion so the correct is A!!!
4 0
3 years ago
Read 2 more answers
Define natural and artificial hazards?<br><br><br>wrong and silly answer will be reported​
kotegsom [21]

Explanation:

See this l know natural only

4 0
2 years ago
ILL GIVE BRIANLY, FOLLOW , 5 STARS AND HEARTS
V125BC [204]

Answer:

it can help heat or cool a room.

Explanation:

I think this is right...

7 0
2 years ago
Other questions:
  • Explain how you can estimate the number of neutrons in the atoms of an element.
    13·2 answers
  • Answer these questions :) please
    8·1 answer
  • What gives elements in a family or group similar properties?
    6·2 answers
  • The pH of a Ba(OH) 2 solution is 10.00. What is the H+ ion concentration of this solution?
    9·1 answer
  • Help please if you can answer this first I'll give you the brainliest
    6·2 answers
  • 1. Air boiled out of water as steam is rich in ?
    7·1 answer
  • CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!!!!
    12·2 answers
  • If an object has a Mass of 11g and a volume fo 13mil, what is its density?
    6·1 answer
  • Explain how force can be manipulated so objects with
    7·1 answer
  • Plutonium-239 undergoes alpha decay and has a half-life of 24,000 years. After 72,000 years, how much of an initial 100.0 g samp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!