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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 mass number of the elementoxygen?
It depends on the isotope of oxygen. There are three isotopes of oxygen with mass numbers of 16, 17, and 18.
Why do atomic mass numbers have decimals for oxygen?
The mass number is the sum of protons and neutrons in the atomic nucleus of chemical elements. All mass numbers are integers. The atomic weight is not an an integer because is calculated taking in the account the isotopic composition of an element; also the mass excess has a role.
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 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.
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 !!
What is the relative formula mass of oxygen?
Oxygen is a non meta element. Atomic mass of it is 16.
Is the atomic mass of oxygen 16?
Oxygen is a non meta element. Atomic mass of it is 16.
Is oxygen 16 and nitrogen 16 isotopes of each other?
No, they are isotopes with the same atomic mass. But they are isotopes of different elements and so are very different from on another. For example nitrogen-16 and nitrogen-14 are isotopes of the same element.
What is the same about oxygen 18 and oxygen 16?
Their atomic number (8) is the same. They are both isotopes of oxygen, with different numbers of neutrons.
What is the mass of oxygen 16?
If you really meant to ask "What is the mass defect of oxygen-16," this is how you do it. mass defect = # of protons x mass of one proton + # of neutrons x mass of one neutron - mass of the nucleus The atomic number of oxygen-16 is 8, so there are 8 protons. The mass of one proton is approximately 1.0073 amu. The Atomic Mass of oxygen-16 is 16, so there are 8 neutrons in oxygen-16. (Atomic mass of 16 minus atomic number of 8 = # of neutrons in oxygen-16.) The mass of one neutron is approximately 1.0087 amu. The mass of the nucleus of oxygen is 16. Now substitute the values into the "mass defect" equation: mass defect = 8x1.0073+8x1.0087-16=approximately 0.128 amu.
How many neutrons are in oxygen has 16 isotopes?
There are 8 isotopes of oxygen, with varying numbers of neutrons. The most common isotope, oxygen-16, has 8 neutrons. Other isotopes like oxygen-17 and oxygen-18 have different numbers of neutrons.
