# What is the mass number of a oxygen atom with 7 neutrons?

## What is the mass number of a oxygen atom with 7 neutrons?

Answer and Explanation: The mass number of an oxygen atom with seven neutrons would be 15 and would be an atom of the oxygen-15 isotope.

## What is the mass number of an oxygen atom that has 8 protons and 8 neutrons?

16 If all of the oxygen atoms we know about, always had 8 protons and 8 neutrons, then the atomic weight would be 16.

## What is the mass number of an atom that has 7 protons and 8 neutrons?

15 amu The nitrogen is the chemical element which is denoted by the symbol N. The atomic number of nitrogen is 7. A nitrogen atom with 7 protons and 8 neutrons has a mass number of 15 amu,. However, in the periodic table, the atomic mass for nitrogen is 14.01.

## What is the mass number of an atom of oxygen with 8 protons and 9 neutrons?

17 Some oxygen atoms have 9 neutrons, while others have 10 neutrons. Oxygen atoms with 9 neutrons would have a mass number of 17 (8 p+ + 9 n0), meaning they would have a mass of about 17 amu. Oxygen atoms with 10 neutrons would have a mass number of 18 (8 p+ + 10 n0), meaning they would have a mass of about 18 amu.

## How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

## What is the atomic number of an oxygen atom with 8 protons and 10 neutrons in its nucleus?

oxygen 18 Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.

## What is the number of electrons in o² if the atomic number of oxygen is 8?

10 The ion has the same number of protons because you never lose a proton to make an ion. But in the case of oxide form, it carries two negative charges. Negative charge come due to the transfer of electron. Therefore the number of electrons is 10.

## How many neutrons does oxygen atom have if it has an atomic number of 8 and an atomic mass of 16?

Oxygen has an atomic number of 8 , and the mass number of an atom is the sum of its atomic number plus its neutron number. We got the mass as 16 units, and so it'll have 16−8=8 neutrons.

## How do you calculate mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

## What is the mass of 1 neutron?

Neutrons

Particle Symbol Mass (amu)
proton p+ 1
electron e− 5.45 × 10−4
neutron n0 1

Feb 11, 2019

## What is a neutrons mass?

neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

## What element has 8 protons 8 neutrons and 10 electrons?

16O2− has 8 protons, 8 neutrons, and 10 electrons.

## What element has 8 protons 8 electrons and 11 neutrons?

Explanation: Well, the atom will 8 protons is oxygen, as seen on the periodic table.

## How many electrons protons and neutrons will an 8 O 2 − anion have?

18O2− has 8 protons, 10 neutrons, and 10 electrons.

## Which is the electron configuration of oxygen 8e -)?

Looking at the periodic table, you can see that Oxygen has 8 electrons. Based on the order of fill above, these 8 electrons would fill in the following order 1s, 2s and then 2p. So Oxygen's electron configuration would be O 1s22s22p4.

## How many neutrons are in the nucleus of an oxygen atom that has an A number of 18?

There are 10 neutrons in the nucleus of a single oxygen-18 atom.

## How do you find the mass of a neutron?

4. How do you find a neutron?

1. The mass number of an atom is the sum of the number of protons and neutrons in the nucleus, and the atomic number is equal to the number of protons.
2. So, mass number (A) = no of neutrons + no of protons.
3. 14 = X + 6.
4. We get number of neutrons (X) = 8.

## How do u find neutrons?

For all atoms with no charge, the number of electrons is equal to the number of protons. The mass number, 40, is the sum of the protons and the neutrons. To find the number of neutrons, subtract the number of protons from the mass number. number of neutrons=40−19=21.

## What has 8 protons and 10 neutrons?

oxygen 18 Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.

## What is the total charge on an oxygen ion that has eight protons eight neutrons and ten electrons?

With eight protons, we are necessarily looking at oxygen, but with 10 electrons, the net charge on the ion is minus two.

## What is atom number 8?

The Elements, sorted by Atomic Number

Atomic Number Symbol Name
6 C Carbon
7 N Nitrogen
8 O Oxygen
9 F Fluorine

## How many electrons does an atom with 8 protons have refer to the figure below )?

Oxygen is group 8 element, so, the atom of oxygen has 8 protons and 8 electrons. The ion has the same number of protons because you never lose a proton to make an ion. But in the case of oxide form, it carries two negative charges.

## What is the neutron of oxygen?

8 neutrons Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of 15.99491461956 u….Oxygen-16.

General
Symbol 16O
Names oxygen-16, O-16
Protons (Z) 8
Neutrons (N) 8

## What is the mass of oxygen?

15.999 uOxygen / Atomic mass

## What has an atomic number of 8 and a mass number of 16?

Oxygen has an atomic mass of 16 amu and an atomic number of 8.

## How do you find the mass?

One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is "kilogram". The SI unit of weight is Newton (N).

## What is the mass number of 8 protons 10 neutrons 8 electrons?

16O2− has 8 protons, 8 neutrons, and 10 electrons.

## What is the number of electrons of o2 if its atomic number is 8?

8 electrons The number eight also means that oxygen has eight protons in the nucleus. The number of protons and the number of electrons are always the same in an element that is neutral and has no charge. Therefore oxygen has 8 electrons. You will find that the atomic weight of oxygen is about 16.

## How is atomic number of oxygen 8?

The atomic number of oxygen is 8. The mass of an atom is given by the sum of the number of protons and neutrons present in the nucleus. Also, the atomic number is the number of protons present in the nucleus. Since the number of neutrons present in oxygen is 8, hence the atomic number of O is 8.

## How do you find the mass of an O atom?

Solution : Oxygen Mass of Oxygen atom `=2.656xx10^(-23)` <br> 1a. m.u ( or 1 u is equal to `1.66075` multiple The mass of oxygen atom in amu `=(2.656xx10^(-23))/(1.66075xx10^(-24))=15.992` a.m.u.