Science, asked by manogna3, 1 year ago

number of electrons in 20 to 30 electrons

Answers

Answered by αηκυsн
0
what is the question.....

manogna3: the question is how many electrons are thee in 20 to 30 atoms
αηκυsн: which atom
manogna3: elements
manogna3: sry
12345Rohit: 10 electrons
12345Rohit: An atom a fundamental piece of matter. ... An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atomcalled the nucleus and the electrons fly around above the nucleus in a small cloud.
αηκυsн: there are 113 types of atom in the world and they have same no. of electrons same as atomic no.example=H atom has 1 electron He has 2 Li has 3....more and more
Answered by 12345Rohit
1
For a neutral atom, the number of electrons is the same as the number of protons.

Often, the number of protons and electrons is not the same, so the atom carries a net positive or negative charge. You can determine the number of electrons in an ion if you know its charge. A cation carries a positive charge and has more protons than electrons. An anion carries a negative charge and has more electrons than protons. Neutrons do not have a net electric charge, so the number of neutrons does not matter to the calculation.

The number of protons of an atom cannot change, so you add or subtract electrons to get the correct charge. If an ion has a 2+ charge, like Zn2+, this means there are two more protons than electrons.

30 - 2 = 28 electrons

If the ion has a 1- charge (simply written with a minus superscript), then there is more electron than the number of protons.

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