Aluminium has 15 neutrons.
Subatomic particles are protons, neutrons and electrons; the number of protons and electrons (in the neutral state) are equal to the atomic number of an element.
To calculate the number of subatomic particles in isotopes, you need to know the atomic number (number of protons) and mass number (sum of protons and neutrons) of the isotope. Subtract the atomic number from the mass number to find the number of neutrons. The number of electrons will be equal to the number of protons if the atom is neutral.
Same number of protons; different number of neutrons. The number of electrons will also be the same, assuming a neutral atom.
well i don't know ask your science teacher
Potassium's atomic number is 19, meaning it has 19 protons in its nucleus. In a neutral potassium atom, there are also 19 electrons orbiting the nucleus. The most common isotope of potassium, K-39, has 20 neutrons, giving it a total of 39 subatomic particles.
24
No, from 80 years.
Number of protons in the nucleus is the atomic number.
No, sodium is not a subatomic particle. Sodium is a chemical element with the symbol Na and atomic number 11. Subatomic particles are particles smaller than an atom, such as protons, neutrons, and electrons.
The total number of subatomic particles in the nucleus
Protons and electrons match the atomic number on the periodic table. The atomic number represents the number of protons in an atom, which also determines its chemical identity. Electrons balance the positive charge of protons in an atom, making it electrically neutral.
The number of neutrons is different for isotopes.