oxygen has an atomic number of 8 and a mass?
17814
Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8).
407461
28) Oxygen has atomic number 8. How many times must an oxygen atom be ionized to create an O+5 ion, and how many electrons will the ion have? A) It must be ionized three times; it now has five electrons.
1308325
Oxygen has atomic no. 8. Its electronic configuration becomes 2,8,6 i.e it has 6 valence electrons. In O2−, there are two more electrons.
102285
9 atoms of oxygen, 3 nitrogen atoms, and 1 aluminum atom.
834538
Oxygen is the eighth element with a total of 8 electrons. In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for O go in the 2s orbital. The remaining four electrons will go in the 2p orbital.
1356697
1 Answer. 3 moles of Oxygen atoms weigh 48.00 grams.
901249
So, we have a mass of 32 grams. We can also use the periodic table to determine that the Mr of oxygen is 16. So there are 2 moles of Oxygen present.
1233508
Answer and Explanation: Oxygen has 8 neutrons. You can figure out the number of neutrons by looking at an element's properties on the periodic table.
377220
1 Oxygen atom has a mass of 16 grams, thus diatomic oxygen weights twice as much- 32 grams. Hence 32 grams is needed.
865904
Quora User, A good observer, an excellent explainer. Short answer: 37641000000000000000000 or 3.7641*10^22 atoms. Where the molar mass of oxygen is equal to 15.999 grams per mole.
105453
Finally, to convert this to atoms of oxygen, use Avogadro's constant, which tells you that in order to have 1 mole of atoms of oxygen, you need to have 6.022⋅1023 atoms of oxygen. The answer is rounded to three sig figs, the number of sig figs you have for the mass of aluminium carbonate.
950811
Mass number. The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
1470811
One atomic mass unit is equal to one gram per mole. When you add these together for a compound, you get the molar mass of that compound. For example, silicon dioxide consists of one silicon atom and two oxygen atoms. The atomic mass of silicon is 28 grams and the atomic mass of oxygen is 16 grams.
1018161
The most common isotope of Oxygen has 24 basic subatomic 8 protons 8 electrons and 8 neutrons.
1286150
Isotopes are forms of a chemical element that have the same atomic number but differ in mass. 16O → 8 protons + 8 neutrons; a “light” oxygen); The relative amounts are expressed as either 18O/16O or δ 18O Oxygen - 18 (aka 18O → 8 protons + 10 neutrons; a “heavy” oxygen).
989159
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
422577
Valence electron is the number of electrons present in the outermost orbit of an element . Oxygen has the atomic number 8. As the electronic configuration of oxygen 1s2 , 2s2, 2p4, it has 6 electrons in outermost orbit ( which is 2nd orbit) and no of electrons in this orbit is 6 ( 2+4).