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
yulyashka [42]
3 years ago
11

What is the electron configuration for helium (He)?

Chemistry
2 answers:
givi [52]3 years ago
3 0
Hello!

The electron configuration for helium is 1s2
Dominik [7]3 years ago
3 0

the answer is 1s2 on ed

You might be interested in
Definition of steepest
andrey2020 [161]
<span>Hi, friend.
Steepest - Being steep to the greatest degree.
Steep - S</span>harply angled.
Example: When hiking trails lead straight up mountainsides, they've got a steep incline.
Hope this helps!
5 0
3 years ago
Read 2 more answers
Which hypothesis is most supported by astronomers?
igor_vitrenko [27]

Answer:

Once I read a NASA post where they were saying that the universe keeps expanding as matter keeps forming and cooling down thus adding to the size of the universe so keeping this in mind, the best answer choice is, <u>option A. The universe is currently expanding and will continue to expand.</u>

8 0
3 years ago
Describe the photoelectric effect and explain why it made modifications to the Rutherford model necessary.
Furkat [3]
<span>Photoelectric effect refer to the emission of electron or free carriers when light shine into a material. According to the Rutherford model, light of any energy should be able to make electrons leave the atom and be emitted. The energy of the emitted electrons should be related to the intensity of the light. But the energy of the electron is actually only related to the energy of the light</span>
6 0
3 years ago
Read 2 more answers
HURRYYY!!!!<br> Convert 7.13 x 10^28 atoms of calcium (Ca) to moles of calcium.
puteri [66]

Answer:

<h2>118,438.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}\\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.13 \times  {10}^{28} }{6.02 \times  {10}^{23} }  \\  = 118438.538...

We have the final answer as

<h3>118,438.5 moles</h3>

Hope this helps you

4 0
3 years ago
Isomers have identical formulas and different
Leno4ka [110]
Molecular structure. Isomers have the same formula, so there is the same elements in both. But they have a different molecular structure and when drawn they look different
4 0
3 years ago
Read 2 more answers
Other questions:
  • A chemist prepares a solution of vanadium chloride by measuring out of into a volumetric flask and filling to the mark with dist
    8·2 answers
  • How many ml of 2.50 M NaOH solution are required to make a 525 mL of 0.150 M?
    5·2 answers
  • hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
    8·2 answers
  • Explain how temperature and amount of precipitation can affect the type of plants and animals found in the grassland biome?
    6·1 answer
  • Based on the following information, Cl2(g) + 2 e- → 2 Cl-(aq) E° = + 1.36 V Mg2+(aq) + 2 e- → 2 Mg(s) E° = -2.37 V which of the
    5·1 answer
  • Suppose you have 300.0 mL of a 0.1000 M solution of a strong acid (HCl), and you add this to 100.0 mL of a 0.0200 M solution of
    9·1 answer
  • What is the energy required to change a spherical drop of water to five smaller spherical drops of equal size? At room temperatu
    15·1 answer
  • Which is more reactive: Magnesium or Potassium?
    5·1 answer
  • When the equation NH3+O2-&gt;N2+H2O
    9·1 answer
  • It can take hundreds of billions of years for a red dwarf to convert all of its hydrogen completely to helium.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!