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The number of protons must be the same.

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Q: Why can't two atoms with the same mass number be isotopes of each other?
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What is the atomic number the atomic mass and the number of neutrons of the element hydrogen?

The 'standard' hydrogen atom has atomic number 1, atomic mass 1, no neutrons. Although there are 2 other isotopes of hydrogen: - (cant confirm name) which has atomic mass 2 and 1 neutron. - (cant confirm name) has atomic mass of 3 and 1 neutron. All isotopes have atomic number 1.


Why cant you add the average masses of each of the isotopes and divide to get overall average of the atoms?

Because the isotopes do not appear in equal amounts. This is hardly surprising since many isotopes experience radioactive decay and change to other elements after decay while stable isotopes persist - thus stable isotopes will usually dominate as the most common isotopes for individual elements with those with the longest half-lifes being more common than those with shorter half-lifes. Of course when you get into the heaviest elements there don't seem to be any stable isotopes so those with longest half life dominate.


How many atoms in PVC?

We make atomic number by number of protons in a atom. PVC is not single atom. We cant give it a atomic number.


How cant you tell isotopes of the same element apart?

You can tell isotopes apart by the difference in there atomic mass numbers. Take for example the isotope Carbon-12. Carbon is the element name and 12 is the atomic mass of the element. The atomic mass number can (most?) always be changed, but the the atomic number ( the number above the Element symbol on the Periodic Table) cannot. Remember: The number of protons add by the number of neutrons equals the atomic mass number. The proton number = the atomic number, as of the number of electrons= the atomic number; hence the atomic number= number of proton = number of electron.


How are atoms and molocules related?

Molecules are collections of two or more atoms.

Related questions

What is the atomic number the atomic mass and the number of neutrons of the element hydrogen?

The 'standard' hydrogen atom has atomic number 1, atomic mass 1, no neutrons. Although there are 2 other isotopes of hydrogen: - (cant confirm name) which has atomic mass 2 and 1 neutron. - (cant confirm name) has atomic mass of 3 and 1 neutron. All isotopes have atomic number 1.


Why cant you add the average masses of each of the isotopes and divide to get overall average of the atoms?

Because the isotopes do not appear in equal amounts. This is hardly surprising since many isotopes experience radioactive decay and change to other elements after decay while stable isotopes persist - thus stable isotopes will usually dominate as the most common isotopes for individual elements with those with the longest half-lifes being more common than those with shorter half-lifes. Of course when you get into the heaviest elements there don't seem to be any stable isotopes so those with longest half life dominate.


Why cant 2 solids react easily?

Because the atoms are moving very slowly and therefore cannot merge with other atoms.


How many atoms in PVC?

We make atomic number by number of protons in a atom. PVC is not single atom. We cant give it a atomic number.


What is a pure substance composed of atoms with the same number of protons and cant be broken down?

A chemical element.


How many atoms does lead contain?

according to the below website; http://ie.lbl.gov/education/parent/Pb_iso.htm there are 48 isotopes of lead, but if u listen to wikipedia (not a trustworthy source) there are only 38. hope i helped, a year 11 chemisty student


How cant you tell isotopes of the same element apart?

You can tell isotopes apart by the difference in there atomic mass numbers. Take for example the isotope Carbon-12. Carbon is the element name and 12 is the atomic mass of the element. The atomic mass number can (most?) always be changed, but the the atomic number ( the number above the Element symbol on the Periodic Table) cannot. Remember: The number of protons add by the number of neutrons equals the atomic mass number. The proton number = the atomic number, as of the number of electrons= the atomic number; hence the atomic number= number of proton = number of electron.


Why cant atoms be divided?

they are really small


Where do you meet number 96 on the pokedex?

from which pokedex other wise i cant answer


Mobile number of mian nawaz shreef?

there are other sources to know his number... u cant get it here....


What is a non-native element mineral?

something that is not on its own block on the periodic table. The mineral can contain these atoms, but cant be the solid form of just one of them, for example, diamond, which is C only with no other atoms involved


How do you block a number so I can txt without the other person knowing who I am?

You cant