# how many neutrons are in an atom of mg 25

13 neutrons

There are 13 neutrons in an atom of magnesium-25. ## How many protons neutrons and electrons are in a Mg-25 atom?

MG-25 is an atom that was discovered at the Massachusetts Institute of Technology in 1945. It is an isotope of the element magnesium that is composed of 25 protons, 25 neutrons, and 12 electrons. It has the atomic number 25, which makes it the most common isotope found in nature.

## What the mass number of an atom with 5 protons and 7 neutrons?

Answer and Explanation: The mass number of an atom with five protons and seven neutrons is 12. In the case of this particular atom, it would be an atom of the boron-12 isotope.

## How many neutrons are present in a 25 12 Mg atom?

No. of neutron = Mass number(Z) – Atomic number (A) = 25-12 =13.

## How many neutrons are in a mg-25 atom?

They differ only because a 24Mg atom has 12 neutrons in its nucleus, a 25Mg atom has 13 neutrons, and a 26Mg has 14 neutrons.

## How many protons and neutrons are in an atom of Mg-25?

In Mg, the number of protons is equal to 12. Substituting this in the equation above, the number of neutrons can be found out as follows. Therefore, the number of neutrons for Mg-25 is 13. The given atom consists of 5 protons and 7 neutrons.

## What is the number of electrons and protons in Mg atom and mg2+ ion?

Conclusion: Mg+2 ion contains 10 electrons and 12 protons.

## How many protons neutrons and electrons are in an Mg atom?

The most common and stable type of magnesium atom found in nature has 12 protons, 12 neutrons, and 12 electrons (which have a negative charge).

## What is the mass number of an atom with 5 protons and neutrons?

Boron has an atomic number of 5 which means it has 5 protons. We assume atoms are neutral so the atom also has 5 electrons. It has an atomic mass (average mass) of 10.811 which we would round up to 11 (the mass of the most common Boron atom) so it has 11 total particles in its nucleus (protons + neutrons).

## What is the mass of an atom with 5 protons and 6 neutrons?

In this case the mass number would be = 5+6= 11.

## What is the mass number of an atom with protons and 7 neutrons?

Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.

## What is the mass number of 5 protons 5 neutrons and 5 electrons?

Name Boron
Atomic Mass 10.811 atomic mass units
Number of Protons 5
Number of Neutrons 6
Number of Electrons 5

## How many neutrons does 25 12 Mg have?

No. of neutron = Mass number(Z) – Atomic number (A) = 25-12 =13.

## How many neutrons are in 25 Mg?

They differ only because a 24Mg atom has 12 neutrons in its nucleus, a 25Mg atom has 13 neutrons, and a 26Mg has 14 neutrons.

## How many protons neutrons and electrons does 25 12 Mg have?

It is an isotope of the element magnesium that is composed of 25 protons, 25 neutrons, and 12 electrons.

## How many neutrons does 24 12 Mg have?

The atomic number of Magnesium is 12, and its Mass number is 24. So there are 24 – 12 = 12 neutrons present in its nucleus.