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
pychu [463]
2 years ago
12

What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons?

Chemistry
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

7

Explanation:

NISA [10]2 years ago
5 0

Answer

<h2>If no of proton is 3</h2><h2 /><h2>Then atomic no. Is3</h2><h2 /><h2>Therefore it is Li</h2><h2 /><h2>Mass no. Of li = 7</h2>

Explanation:

<u>HOPE</u><u> IT</u><u> HELPS</u>

You might be interested in
How do you find the molecular formula from the empirical formula?
miskamm [114]
To find them you would have numbers of the elements in percentage or grams then you divide them by their molar mass to get their moles. From there you divide by the smallest number. Round it to two or one sig fig. If you have a number that is for ex. 2.5 you multiply it by 2 to make it whole as well the other whole numbers. Then to find the molecular formula the problem must give you another molar mass and using your empirical formula convert it to its molar mass then you divide them, larger number over smaller number. You should get a number round it to 1 sig fig. Now you use that number and multiply the subscripts on the empirical formula to get the molecular formula.
7 0
3 years ago
Can somebody help me with this question please
Tasya [4]

Answer:

concave lens

Explanation:

it's concave lens because it diverges the ray/beam of light.

7 0
3 years ago
Menthol (FW = 156.3 g/mol), the strong-smelling substance in many cough drops, is a compound of carbon, hydrogen, and oxygen. Wh
Alisiya [41]

Answer: the molecular formula is C10H20O

Explanation:Please see attachment for explanation

7 0
3 years ago
A _ _ has a definite composition that will not vary
emmasim [6.3K]

Answer: Mixtures do not have the same composition, properties, and appearance throughout.

Explanation: It does not vary from sample to sample.

7 0
3 years ago
This is when an organism like insects or plants become trapped in amber
BigorU [14]

thats very nice lol, things stuck in amber are very cool

5 0
3 years ago
Other questions:
  • people can increase water conservation by eating more food drinking more water taking longer showers reducing water pollution
    7·2 answers
  • The atomic mass of 12C is 12.000000. Multiply the atomic mass of 12C by its abundance. Report the number to 5 significant digits
    6·2 answers
  • “Denitrifying” bacteria return molecular nitrogen gas (N2) back into the biosystem by a series of reductions. Identify the corre
    15·1 answer
  • What type of reaction is Mg + H2Cl2 — MgCl2 + H2?
    14·1 answer
  • What volume of 10,0 M H2SO4 is required to prepare 4.0 L of 0.50 M H2SO4?
    10·1 answer
  • What are the functional groups in oxybenzone?
    6·2 answers
  • Elastic energy is stored when an object is stretched. Is this an example
    11·1 answer
  • 1) If you have 2.6 moles of iron (III) oxide, how many molecules of iron (III)
    5·1 answer
  • What makes up most of an atom?
    15·2 answers
  • Which of the following is the correct measurement for the volume of liquid shown below?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!