Where Are Protons Neutrons And Electrons Located In An Atom
Camila Farah
The nucleus of an atom is its central body holding particles called protons and neutrons.
Not all atoms have neutrons and the number of neutrons is not usually the same as protons or electrons. Neutrons are located with protons in the nucleus. The electrons are around the nucleus arranged in shells. When we write the symbol for an atom we can place its mass number at the top left and its atomic number at.
For example a lithium atom z 3 a 7 amu contains three protons found from z three electrons as the number of protons is equal to the number of electrons in an atom and four neutrons 7 3 4. The protons combine with the electrons and neutrons to make atoms. An ion has an unequal number of protons and electrons. Most hydrogen atoms for example have no neutrons but a rare few have one and fewer still have two.
You need the atomic number to find the amount of protons and or electrons unless you have the amount of neutrons and the atomic mass in which case you can simply subtract the amount of neutrons from the atomic mass leaving the amount of protons in the atom. A neutral atom has the same number of protons and electrons charges cancel each other out. An atom has no overall charge because it has an equal number of protons and electrons. If the charge is positive there are more protons than electrons.
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Explanation for part b. Protons carry a positive electrical change while electrons are negatively charged and neutrons are neutral. As we know that the protons are positively charged. So it attracts the electrons.
The number of protons in the nucleus is the atomic number of the element. All the protons are present in the nucleus or centre of an atom. Protons neutrons and electrons are located in the atom. For example a helium atom always has two protons and carbon always has six.
Atoms are made of protons neutrons and electrons.
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