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
zepelin [54]
3 years ago
12

How many neutrons does beryllium have?

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
5.

i answerd this b4
You might be interested in
How many moles in 4 g of Ca3N2?<br><br> .027 mol<br><br> .613 mol<br><br> 2.05 mol<br><br> .760 mol
Arada [10]

Answer:

0.027mole

Explanation:

3 0
2 years ago
The website of a popular stargazers club notes that on Wednesday the moon will rise at 6:23 PM and set at 6:12 PM on Thursday. W
astraxan [27]

It's C that's correct because it's very true...

6 0
3 years ago
Read 2 more answers
The compound 3-methylpentane is an example of
Cerrena [4.2K]

Answer:

A) An Alkaline

Explanation:

An alkane that is pentane which is substituted by a methyl group at position 3. It is used as a solvent in organic synthesis, as a lubricant and as a raw material for producing carbon black.

3 0
3 years ago
When an atom is in the ground state what must happen for the atom to be in an excited state? what must happen for this atom to r
scoray [572]
Hi there

In order for an electron to jump into a higher energy state, it must first absorb energy (heat, light, etc).

When an electron goes back down to the ground state from the excited state, it emits energy usually in the form of a photon.

i hope this helps

4 0
3 years ago
When the u-235 nucleus is struck with a neutron, the ce-144 and sr-90 nuclei are produced, along with some neutrons and beta par
butalik [34]
Answer: 2 (2 neutrons are produced).

Explanation:

1) In the left side of the transmutation equationa appears:
²³⁵U + ¹n →

I am omitting the atomic number (subscript to the leff) because the question does not show them as it is focused on number of neutrons.


2) The right side of the transmutation equation has:

→ ¹⁴⁴Ce + ⁹⁰Sr + ?

3) The total mass number of the left side is 235 + 1 = 236

4) The total mass number of Ce and Sr on the right side is 144 + 90 = 234

5) Then, you are lacking 236 - 234 = 2 unit masses on the right side which are the 2 neutrons that are produced along with the Ce and Sr.

The complete final equation is:

²³⁵U + ¹n → ¹⁴⁴Ce + ⁹⁰Sr + 2 ¹n

Where you have the two neutrons produced.
6 0
3 years ago
Other questions:
  • PLEASE HELP
    7·1 answer
  • Cathy is using a high-powered microscope to look at a leaf. What does she see?
    5·1 answer
  • What is the oxidation number of sulfur in the compound: Na2S2O3
    10·1 answer
  • Which pair of substances would most likely result in the production of a gas when reacting to an acid
    9·2 answers
  • Consider the following reaction where Kc = 154 at 298 K.2NO(g) + Br2(g) 2NOBr(g)A reaction mixture was found to contain 4.64×10-
    11·1 answer
  • What is the independent variable for a dry ice experiment
    12·2 answers
  • According to the ideal gas law, a 9.585 mol sample of krypton gas in a 0.8032 L container at 504.9 K should exert a pressure of
    5·1 answer
  • What is the volume at STP of 3.44 x 1023 molecules of CO2
    7·1 answer
  • Can someone help me ASAP THIS IS IS A IMPORTANT GRADE
    10·2 answers
  • Which of these ingredients is important in making plastics?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!