Hydrogen atom:
Atomic number: 1
Number of neutrons: 0 [for commonest isotope]
Number of electrons: 1
Look at the atomic number. That will be the number of protons and electrons; subtract that number from the atomic mass (rounding down) and you'll have the number of neutrons.
Aluminum has 13 protons and approximately 14 neutrons.
Hydrogen, the element with the lowest atomic number.
well you look at the periodic table of elements. the atomic number equals the number of protons. Then subtract the number of protons from the atomic mass (both protons and nuetrons have atomic mass units of 1 and electrons equal 0). That will give you the number of nuetrons.
Scandium's, or Sc's, atomic number is 21. Its most common isotope has an atomic mass of 45. Since an electrically neutral atom's atomic number is equal to its number of protons as well as its number of electrons; and since the number of neutrons in a particular isotope of an atom is equal to its atomic mass minus its atomic number, the number of neutrons of the most common isotope of neutral scandium is 45 - 21 = 24.
Look at the atomic number. That will be the number of protons and electrons; subtract that number from the atomic mass (rounding down) and you'll have the number of neutrons.
The element becomes a new element becuase the atomic number would change. For example if you added a proton to Hydrogen-atomic number 1, it would become helium-atomic number 2
There are too many elements to list how many nuetrons each one has, but as a general rule of thumb you can subtract the atomic number (number of protons) from the molecular mass number (Which is generally the number of protons and nuetrons added, since electrons weigh very little) to obtain the number of nuetrons For example, Carbon has an atomic mass of 12. Subtract the atomic number, which is 6, and you will get the number of nuetrons, which is also 6.
Normal Hydrogen has an atomic number of 1, no neutrons and 1 electron.
Copper has 29 protons, that is why it has the atomic number of 29. In addition, copper has 29 electrons and 35 neutrons.
Aluminum has 13 protons and approximately 14 neutrons.
The atomic number of an element tells you the amount of of electrons. In oxygen, symbol 'O', there are 8 electrons since the atomic number is 8. For example, the atomic number of Hydrogen is 1, so there is 1 electron in a Hydrogen atom.
The number of protons for any element is the atomic number. The number of electrons is equal to the number of electrons. To find the number of nuetrons you must subtract the atomic number from the mass number mass number-atomic number= number of nuetrons protons=electron the number of protons in the element aluminum is 13. The number of electrons is 13.
Hydrogen, the element with the lowest atomic number.
well you look at the periodic table of elements. the atomic number equals the number of protons. Then subtract the number of protons from the atomic mass (both protons and nuetrons have atomic mass units of 1 and electrons equal 0). That will give you the number of nuetrons.
The atomic number for hydrogen (H) is 1, and it has 1 electron in the outer shell.
They are different because of the number of electrons in there electron cloud. True, the number of electrons are specific to the type of atom but so are the number of protons. The atomic number of the atom is directly related to the number of protons and electrons it has. So carbon for example is given the atomic number 6. Thus it has 6 protons and 6 electrons. It's atomic mass is 12.0107 amu. This we can round to 12. To aquire the atomic mass of a given element you add the number of protons and nuetrons together since the electrons are so infinitely small they are not considered to have any mass. We know from the atomic number that carbon has 6 protons, it's atomic mass is 12, so that means the number of nuetrons must also be 6. This doesn't exactly answer the question though. The obvious things that differentiate one atom from another are their atomic number, the number of protons and electrons inside an atom, and their atomic mass.