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Element X with 72 protons will have 72 electrons in a neutral state. The number of protons in an element is equal to the number of electrons in that element's neutral atom.
It will have 30 protons and 30 electrons if the atom is neutral.
In the neutral state the number of electrons is 61.
The number of electrons in a neutral atom is equal to the number of protons, so in this case, the element must have 12 electrons.
If phosphorus is neutral-charge, there are 15 of each.
If element X has 91 protons, it is element Protactinium (Pa) on the periodic table. In a neutral atom, the number of electrons equals the number of protons, so element X would also have 91 electrons.
Carbon has 6 protons. In a neutral atom, the number of protons is equal to the number of electrons, which is why carbon, with 6 electrons, also has 6 protons. This is what defines it as the element carbon on the periodic table.
Calcium is an element with an atomic number of 20, which means it has 20 protons in its nucleus. To be electrically neutral, an atom must have an equal number of electrons to protons. Therefore, calcium would need 20 electrons to be electrically neutral.
24 electrons, remember the atomic number of an element tells you how many protons it has. The number of protons = the number of electrons (if the atom isnt charged)
The number of electrons in an element is determined by its atomic number, which represents the number of protons in the nucleus of its atom. In a neutral atom, the number of electrons is equal to the number of protons.
If an element has 17 protons, it will also have 17 electrons since atoms are electrically neutral. Adding the number of neutrons (18) to the number of protons (17) gives us the mass number of the element, which in this case would be 35.
An atom's nucleus contains protons and neutrons, while electrons orbit around the nucleus. The number of protons defines the element, the number of neutrons can vary within isotopes of the element, and the number of electrons equals the number of protons in a neutral atom.