The numbers of protons and electrons in any neutral atom are the same as the atomic number, 13 for aluminum. The number of neutrons varies by isotope and can be found by subtracting the atomic number from the atomic mass number. One isotope is Al-27, in which there are 14 neutrons.
The "Atomic Number" is the number of protons in the nucleus of any atom.
Any change of the atomic number.
The atomic number of neon is 10, not 22. The atomic number represents the number of protons in the nucleus of an atom, which determines its chemical properties.
By subtracting the atomic number from the atomic mass of an element, you obtain the number of neutrons in its nucleus. The atomic number represents the number of protons in the nucleus, and the atomic mass includes both protons and neutrons, so the difference gives you the number of neutrons.
Lithium has the lowest number of protons of any metal: 3. Hydrogen an helium have fewer protons bu they are not metals.
The metal with atomic number 3 is lithium. However, 1370 is not the atomic number of any element as the periodic table only goes up to atomic number 118.
Lithium is the element with the lowest atomic number in Group 1 (alkali metals), while hydrogen is the element with the lowest atomic number in Group 17 (halogens) and Group 18 (noble gases).
The numbers of protons and electrons in any neutral atom are the same as the atomic number, 13 for aluminum. The number of neutrons varies by isotope and can be found by subtracting the atomic number from the atomic mass number. One isotope is Al-27, in which there are 14 neutrons.
Hydrogen is given the number one in the periodic table because it has one proton in its nucleus. The atomic number of an element corresponds to the number of protons in its nucleus, which helps to distinguish one element from another.
Any atomic number for a dime.
The lowest multiple of any number is the number itself.
The lowest multiple of any number is the number itself.
Silver and tin are two different elements. Silver has an atomic symbol of Ag and an atomic number (proton number) of 47. It is a lustrous white metal and has the highest thermal conductivity of any metal and electrical conductivity of any element. It is also very ductile and malleable. Tin has an atomic symbol of Sn and an atomic number of 50. It is also ductile and malleable, but oxidizes very easily. As such, it is usually coated over other metals to prevent corrosion.
Platinum is a rare element too. Atomic number of platinum is 78.
The "Atomic Number" is the number of protons in the nucleus of any atom.
The atomic number of sulfur is 16 The number of protons is the same as the atomic number. The S-2 gains 2 electrons so it changes from 16 to 18. The atomic mass is 32. The atomic mass number minus the number of protons will give you 16 which is the number of neutrons. :)