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
lyudmila [28]
2 years ago
10

What is a rule for determining the mass number of an atom or ion?

Chemistry
1 answer:
Semenov [28]2 years ago
7 0

Answer:

The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus

Explanation:

Each proton and each neutron weigh one amu( atomic mass unit), adding together the neutrons and protons and multiplying by 1 amu you get the mass of an atom

You might be interested in
Is this right, I feel like its wrong
hjlf

It is correct, next time re-check your answer and don't second guess yourself. ;3

7 0
2 years ago
What is the joining of atoms to form new substances called?
kirill115 [55]
Chemical bonds is the answer
3 0
2 years ago
Identify a reason that chemical reactions release energy during the reaction process.
Bess [88]

Answer:

option b

Explanation:

When the energy is released the process is called exothermic reaction. This happens when the bonds are broken in the reactants and the system release energy.

5 0
2 years ago
Read 2 more answers
Ionic bonds usually have a ?
iVinArrow [24]

Answer:

Ionic bonding is the complete transfer of valence electron(s) between atoms.

Explanation:

It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

6 0
2 years ago
Read 2 more answers
What is true about past volcanic eruptions?
Nimfa-mama [501]

Answer:

It is either

Past volcanic eruptions leave marks on rocks near the volcano.

Past volcanic eruptions leave marks in the atmosphere.

My guess is C.

Explanation:

4 0
3 years ago
Other questions:
  • A scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. How many grams of na3po4
    10·1 answer
  • Why is CN considered a weak base if its the conjugate base of a weak acid?
    15·1 answer
  • An animal which eats plants and animals is a(n)
    13·1 answer
  • An element, X, can form a chloride (XCl3) and an iodide (XI3). The chloride can be converted quantitatively into the iodide when
    7·1 answer
  • The star Antares has a mass of 3.08 x 1031 kg.<br> How might this star be classified?
    13·2 answers
  • An atom contains 31 protons,39neutrons and 31 electrons.Identify the mass number of this atom​
    9·1 answer
  • I need help with this
    14·2 answers
  • How much did the total amount of discarded clothing and other fabrics increase from 1960
    6·1 answer
  • Please help me it is due in 10 min <br> there is 8 questions
    9·1 answer
  • When heat move in a gas or liquid, warm matter rise and cold matter sinks, creating currents. which type of heat transfer is thi
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!