Mixture; compounds; elements
Element; compounds; mixture
Compound; elements; compounds
12.The number of _____ determines which element it is.
electrons
protons
positrons
neutrons
b. Oxygen, fuel, primer.
c. Oxygen, fuel, oxygen enriched environment.
d. Oxygen, fuel, a liquid.
Hey there
The answer should be : Oxygen, fuel , heat
I hope that's help !
B) atomic number
C) number of protons
D) number of electrons
The quantity that can vary among atoms of the same element is the mass number, which represents the sum of the number of protons and neutrons in an atom.
The quantity that can vary among atoms of the same element is the mass number. The mass number represents the sum of the number of protons and neutrons in an atom. While the atomic number (which represents the number of protons) remains constant for atoms of the same element, the number of neutrons can vary, resulting in different mass numbers for atoms of the same element.
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To find the number of atoms in 4.0 Mol of sodium, you need to multiply the number of moles by Avogadro's number. This will give you approximately 2.4088 x 10^24 atoms.
To calculate the number of atoms in 4.0 Mol of sodium, you need to use Avogadro's number, which is 6.022 x 1023 atoms per mole. The calculation is as follows:
Start with the number of moles given, which is 4.0 mol.Multiply this by Avogadro's number (6.022 x 1023) to get the total number of atoms:4.0 mol x 6.022 x 1023 atoms/mol = 2.4088 x 1024 atoms
So, there would be approximately 2.4088 x 1024 atoms in 4.0 mol of sodium.
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