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oxygen is a non metal element. Atomic number of it is 8.
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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.
Is 18 O an isotope?
Number of Neutrons = Atomic mass minus Atomic Number. Neutrons = 18[Atomic Mass] - 8[Atomic Number] Neutrons = 10
What is the mass of this isotope that has 8 protons and 8 neutrons?
The mass number is the sum of the number of protons and neutrons, in this instance 16, more specifically O-16, since 8 protons is characteristic of oxygen.
What is the the formula mass of the compound H2SO4?
mass H= 1.01g mass S= 32g mass O= 16g Total mass = 2(H) + S + 4(O) = 98.02g
What is the atomic mass of o?
The Atomic Mass of Oxygen is: 15.999
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 name of this atomic number 8 and mass number 16?
This element is oxygen (O).
The mass number of an element is the number of?
Mass number is the atomic mass of a particular isotope (apex chem 5.3)
Which is usually the larger number the mass number of an element or the formula mass of a compound that contains the element?
The formula mass of a compound that contains the element would be a larger number than the mass number of the individual element. The individual element would simply be the mass of just that one atom, where as the compound would be the mass of that atom plus the other masses of the other atoms that make up the compound. ex. Oxygen-O has a mass number of about 16 grams. Water-H2O has a formula mass of 2 x mass of Hydrogen-H (about 1) + the mass of Oxygen-O 16 = 18 grams. A formula mass of 18 g is more than a mass number of 16 g.
Is 18 O an isotope?
Number of Neutrons = Atomic mass minus Atomic Number. Neutrons = 18[Atomic Mass] - 8[Atomic Number] Neutrons = 10
What are the sizes of a hydrogen atom carbon atom and oxygen atom?
H has a mass number of 1 (one proton, no neutrons), Carbon has a mass number of 12 (6 neutrons, 6 protons) and O has a mass number of 16 (8 neutrons and 8 protons).
What is the mass of this isotope that has 8 protons and 8 neutrons?
The mass number is the sum of the number of protons and neutrons, in this instance 16, more specifically O-16, since 8 protons is characteristic of oxygen.
How many protons neutrons does oxygen have?
oxygen has 8 protons as its atomic number is 8. The number of neutrons depends on the isotope. O-15 isotope will have 7 neutrons, O-16 isotope will have 8 neutrons. (Note: Mass number = Number of protons + number of neutrons)
What is the mass of 0.7891 mol of ferric oxide (Fe2O3)?
Atomic Mass of Fe: 55.8g/mol Atomic mass of O: 16g/mol Molecular mass of Fe2O3: 2(55.8)+3(16) = 159.6g/mol mass = Molecular mass x number of moles mass = 159.6g/mol x 0.7891mol = 125.94g
What is the molar mass of mg o?
The molar mass of Mg O = 40.3044 g/mol
How do you calculate the theoretical mass percentage of oxygen in potassium chlorate?
I believe it is: %O=mass of 3 mol of O / mass of 1 mol of potassium chlorate *100% If you measured it: %O=mass of oxygen lost / mass of potassium chlorate *100%
What is the percent composition of FeO?
FeO is 50 mole % Fe and 50 mole % O FeO is 77.73 mass % Fe and 22.27 mass % O mass fraction X = molar mass X / (total molar mass of compound) mass % Fe = [atomic mass Fe] / ([atomic mass Fe] + [atomic mass O])
