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
belka [17]
3 years ago
5

How many valence electrons does hydrogen need to have a full first shell?

Chemistry
1 answer:
Ket [755]3 years ago
5 0
Well, the element of hydrogen only has 1 electron in its s sub shell, if it's s sub shell for the energy level of 1 were to be filled, there would need to be 2 electrons present in its shell to have a full first shell, as the s sub shell can only hold 2 electrons within it.
You might be interested in
Can anyone help me with this?
satela [25.4K]

Answer:liquids and gases

Explanation:

friction

4 0
3 years ago
“Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules.” which state of
Anna [14]
I think its c because solid,liquid nor plasma really fits to the description and i don't really know the last one so the best option is probably C. 
7 0
3 years ago
Read 2 more answers
Which fire symbol signifies ammunition with a mass explosion?
marissa [1.9K]

The answer is Fire symbol 1  

That is Fire symbol 1, signifies ammunition with a mass explosion.

The symbol can be seen in the image attached.

This symbol includes these :

1. Do not use fire fighting unless rescue attempt is planned.

2. If person's safety is in danger, use cover.

This fire symbol 1 signifies ammunition with a mass explosion.


4 0
3 years ago
A weighed piece of magnesium ribbon is added to a dried crucible, which is reweighed and heated in air to form the compound MgO.
olga nikolaevna [1]

Answer:

One of the errors for low percentage of magnesium could be because not all the magnesium may have reacted.

Explanation:

During the heating process, if the magnesium have not reacted completely, it can lead to low percentage of magnesium in the oxide formed. The product may still look a bit greyish rather than whitish after the heating process.

4 0
3 years ago
How many Noble gases are there?
melomori [17]

Answer:

six noble gases

Here are five of the six noble gases: helium, neon, argon, kypton and xeon. They're all colourless and transparent. Krypton and xeon form compounds only with difficulty. Helium, neon and argon don't form compounds at all.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Maple syrup has a density of 1.325 g/ml, and 100.00 g of maple syrup contains 67 mg of calcium in the form of ca2+ ions. what is
    8·2 answers
  • 11) When salt and water are mixed, they form a solution like in the ocean. When sand and water are mixed, they form a mixture wh
    9·1 answer
  • The strongest intermolecular interactions between acetic acid (CH.COOH) molecules arise from:a) dipole-dipole forces b) ion-dipo
    9·1 answer
  • Explain the relationship between chemical bonds and energy in the body.
    13·1 answer
  • How many electrons are in lead?
    6·1 answer
  • Need help asap!!!!! Plz
    6·1 answer
  • Which metallic crystal structure has a coordination number of 8?
    11·2 answers
  • Complete the following sentence: "During a chemical reaction."
    11·1 answer
  • On a temperature versus time graph, how does the temperature at the beginning of a change of state compare with the temperature
    6·2 answers
  • Suppose that a 10-mL sample of a solution is to be tested for I− ion by addition of 1 drop (0.2 mL) of 0.13 M Pb(NO3)2.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!