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# What is the atomic number and the mass number of oxygen?

Updated: 8/10/2023

Wiki User

12y ago

Atomic number of oxygen: 8

After the IUPAC Tables, 2009 the atomic weight of oxygen is

[15,99903; 15,99977].

The abridged conventional atomic weight is (also after the IUPAC Tables, 2009) 15,999; following the IUPAC tradition the correct expression is atomic weight, not Atomic Mass.

Wiki User

12y ago

Wiki User

12y ago

The atomic number of oxygen is 8.

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element.

For example the isotope oxygen-16 has the mass number 16.

Wiki User

15y ago

atomic weight of oxygen is 15.9997 atomic number of oxygen is 8 hope i helped:)

Wiki User

15y ago

The atomic mass of oxygen is 15.9994~16

Wiki User

12y ago

YES.

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Related questions

### What is the atomic number and atomic mass for oxygen?

Oxygen is a non meta element. Atomic mass of it is 16 Atomic number of it is 8.

### What is the atomic number for the oxygen atom?

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. The atomic weight of oxygen (not Atomic Mass) is [15,99903; 15,99977] after the IUPAC Tables - 2009. The atomic number of oxygen is 8.

### What is the atomic number and mass of Oxygen-17?

Atomic number is 8. Mass number is 16.9991315 u

### What are the atomic and mass numbers of oxygen?

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. The atomic weight of oxygen (not atomic mass) is [15,99903; 15,99977] after the IUPAC Tables - 2009. The atomic number of oxygen is 8.

### What is the atomic symbol and atomic mass of oxygen?

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. The atomic weight of oxygen (not atomic mass) is [15,99903; 15,99977] after the IUPAC Tables - 2009. The atomic number of oxygen is 8. The chemical symbol is O.

### Was is the atomic mass number for oxygen?

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element.For example the isotope oxygen-16 has the mass number 16.The mass number is not the atomic mass !!

### How do you get the mass number of an atom?

Look on the Periodic Table. The bottim number is the Atomic Mass and the top is the atomic number. ex. The atomic mass for O (oxygen) is 16.

### What is the atomic mass mass number of oxygen?

The atomic mass number of oxygen is 16.0. --------- The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. After IUPAC Tables from 2009 the atomic weight of oxygen is [15,99903; 15,99977]. The conventional (abridged) atomic weight is 15.999 amu.

### What element has atomic mass of 16 and 8 neutrons?

If you had looked in the periodic table, you would have seen that the element Oxygen has an atomic mass of 16 (or more precisely 15.9994) and if you were to take that atomic mass and subtract the atomic number from it (i.e. 8) you would get a difference of 8 which is the number of neutrons it contains. In short, oxygen is that element.

### He atomic number of oxygen is 8 What is the mass number of an oxygen atom with 7 neutrons?

The atomic mass of oxygen (8 protons + 7 neutrons) is 15.For finding the atomic mass of any element, we have to get sum of number of protons & number of neutrons. Atomic Mass (A) : p+n.p = no. of protons.n = no. of neutrons.

### What is the oxygen mass number?

The atomic weight (not mass) of oxygen is [15,99903; 15,99977] or in an abridged form 15,999. The term atomic mass is used only for isotopes. The mass number is the sum of neutrons and protons in an atomic nucleus.

### What is the atom with atomic number 8 and mass number sixteen?

Atomic number 8 and mass number sixteen is Oxygen