well... the whole process of getting it is quite simple:
first you multiply the mass of boron by 1 divided by the moloar mass which in this case it is 10
10.81 * (1/10) or 10.81/10 =1.081
second, you multiply the result by Avogadro's number or 6.02*1023
1.081 * (6.02*1023) = 6.5*1023
after this your finished. this is the process to finding the number of atoms to any element. hopes this helps!
This cannot be possible. Atoms cannot be divided or separated, meaning there cannot be a part of an atom. Either you have 6 atoms or 7 atoms, etc. You can't however, have 6.5 atoms or 9.63 atoms. When expressing a number of atoms that has a decimal, usually it will be due to scientific notation, which requires it.
2
1.00*10-7 moles of boron is how many grams is this
There are 4 boron atoms in a molecule of borax, which has the chemical formula Na2B4O7·10H2O.
there are 5 electrons in boron atoms.
This cannot be possible. Atoms cannot be divided or separated, meaning there cannot be a part of an atom. Either you have 6 atoms or 7 atoms, etc. You can't however, have 6.5 atoms or 9.63 atoms. When expressing a number of atoms that has a decimal, usually it will be due to scientific notation, which requires it.
2
1.00*10-7 moles of boron is how many grams is this
There are 4 boron atoms in a molecule of borax, which has the chemical formula Na2B4O7·10H2O.
there are 5 electrons in boron atoms.
Boron dioxide would have formula BO2, with a total of three atoms, BUT this is NOT a possible compound.B2O3, with 5 atoms, is called boron trioxide (or diboron trioxide, boron oxide, boron sesquioxide, boric oxide alternatively).
There is one boron atom in one molecule of BF3.
There is 13 isotopes in the element boron. xD
Boron has five protons.The element boron has 5 protons.5
Boron has 3 valence electrons.
To calculate the number of grams of fluorine in 5 molecules of boron trifluoride, you need to first determine the molar mass of boron trifluoride (BF3). Boron trifluoride has one boron atom and three fluorine atoms, so the molar mass is ~ 67.8 g/mol. Since each molecule of boron trifluoride contains three fluorine atoms, the total mass of fluorine in 5 molecules would be 3 times the molar mass of fluorine (approximately 19.0 g/mol) times 5.
None, as pure Aluminium is an element which contains only atoms of Aluminium and nothing else.