A mole of atoms and the number, analogous to saying " one dozen, is Avogadro's number and is 6.022 X 10^23. ( no units )
This number is the number of Avogadro: 6,022 140 857(74).10e23.
Avagadro's number, which is 6.022 X 1023.
Avogadro's number
The formula of this compound would be FeS2 , this is iron pyrites. Often called fools gold.
Element
They are called isotopes,
Any number of atoms joined together by means of chemical bonds is called a molecule. The number of atoms in a particular molecule varies.
The number of protons in the nucleus will ALWAYS be the same for a specific element.(ex: Hydrogen always has EXACTLY 1 proton)But, the number of electons and neutrons can vary in a particular element.
6.023 x 1023
All atoms of the same element are not identical. The atoms of same element with different number of neutrons are called as isotopes. Although, the number of protons and electrons are same in every atom.
The formula of this compound would be FeS2 , this is iron pyrites. Often called fools gold.
Element
They are called isotopes,
Avogadro's number is the number of molecules in a mole of a substance. This is expressed as 6.022 141 29 E23 /mol. This is defined as the number of atoms in 12 grams of carbon12. A mole of any gas has this number of molecules. Any fraction of that mole must be divided into the number.
Two atoms that have the same number of protons are called isotopes.
The formula of this compound would be FeS2 , this is iron pyrites. Often called fools gold.
Two atoms that have the same number of protons are called isotopes.
Two atoms that have the same number of protons are called isotopes.
isotopes Atoms of the same element are called Isotopes. they have the same number of atoms (i.e. same atomic number) but different number of neutrons
Any number of atoms joined together by means of chemical bonds is called a molecule. The number of atoms in a particular molecule varies.