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While it is useful to visualize an Electron orbiting an atomic nucleus like a moon orbiting a planet.
It is more realistic to think of the Electron as a standing wave (with a fixed number of wave crests and troughs) surrounding the nucleus. The electromagnetic force holds the Electron and nucleus together. The Electron holds a negative electrical charge and the nucleus a positive electrical charge and the two attract one another.
Therefore for each positive charge present in the atomic nucleus (the Protons) there must be a balancing negative charge (the Electrons) present round the atom.
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Number of electrons that can be held in the second orbit?
The second energy level (orbit) can hold 8 electrons.
The number of protons in a neutral atom is equal to the number of what?
In a electrically neutral atom, the number of positive charges in the atom's nucleus (with one charge being held on each proton in the nucleus), is balanced out by the number of negative charges present in the electron cloud round the nucleus (with one charge being held on each electron in the cloud). This means that in a neutral atom the number of Protons = the number of Electrons.
What force holds atoms together in a substance?
the nucleus of an atom has protons and neutrons, and electrons spin in orbitals around the nucleus. since opposites attract, electrons are pulled towards the protons in the nucleus, but their spin-velocity is like planets in a solar system: they keep approximately the same distance from the sun, even though the sun's gravitational pull is extremely strong.
Is the valence electron farthest or closest to the nucleus?
No. By definition, valence electrons are the furthest electrons from the nucleus in the atom. They are the electrons most easily removed from (or added to) the atom to create ions. A loophole to this answer might be to say that hydrogen and helium only have 1 and 2 electrons respectively so their valence electrons are close. That's a matter of perspective, as no electrons are really "close" to the nucleus to begin with. A typical comparison is to imagine a grape seed in the middle of a football stadium. The grape seed represents the nucleus, and an electron would be a speck of dust on the outside of the stadium. No. By definition, valence electrons are the furthest electrons from the nucleus in the atom. They are the electrons most easily removed from (or added to) the atom to create ions. A loophole to this answer might be to say that hydrogen and helium only have 1 and 2 electrons respectively so their valence electrons are close. That's a matter of perspective, as no electrons are really "close" to the nucleus to begin with. A typical comparison is to imagine a grape seed in the middle of a football stadium. The grape seed represents the nucleus, and an electron would be a speck of dust on the outside of the stadium.
The 3 subatomic particles?
The three subatomic particles in an atom are protons, neutrons, and electrons:Protons have a relative mass of 1 and a charge of +1, and they are found in the nucleus of an atom.Neutrons have a relative mass of 1 and no charge, and they are also found in the nucleus of an atom.Electrons have a relative mass of 1/1836 and a charge of -1. They are found in specific orbits around the nucleus and are held in these orbits by the positive charge of the protons in the nucleus.
How are electrons held in orbit in their atoms?
Between electrons and the atomic nucleus a repulsion exist.
Why are the electrons held in orbit?
Because they are the outer electrons in an atom and they orbit around the nucleus. But you should ask a scientist this question. NOT put it on ask.com. OR look it up on google.com. it is very likely that you will find something there.
What number of electrons that can be held in first orbit closest to the nucleus?
The orbit or electron shell closest to the nucleus is the 1s sub-shell. It can hold 2 electrons before the 2s sub-shell is filled. H and He have their electrons in this shell (the 1s)
What is the number of electrons that can be held in the frist orbit?
Two (2) electrons can be held in the first orbit.
Why are electrons held into the nucleus?
The atomic nucleus doesn't contain electrons.
What is atom made from?
A nucleus of Protos and Neutrons held together by the strong force with orbiting electrons around the nucleus.
Number of electrons held closet to nucleus?
2 electrons are held closest to the nucleus, after that the maximum per shell is eight.
What is the difference between bound and free electrons?
Bound electrons are the electrons locked in orbit of the atom which are held in orbit by its attraction to the positive charge of the proton(s) in the nucleus. Electrons have a negative charge. Conversely, the free electrons are electrons that are not orbiting the nucleus of an atom normally in the form of static electricity. Valence electrons are the electrons orbiting the outermost shell of the atom are weakly held by the positive proton charges and can be transferred to or shared with one or more other atoms. Valence electrons are bound until they are freed by some outside force or reaction.
Electrons shared in a molecule are held where to the atoms with the larger nucleus?
Electrons shared in a molecule are held more closely to the atom with the larger nucleus
What is the effect of electrons held loosely?
__________ electrons are loosely held to a positive nucleus.
Why it is so much easier to remove an elcetron from an atom of large atomic weight thabn it is to remove proton?
electrons orbit the nucleus so they come "loose" easier than the protons, which are held in place by a thing called "strong force". strong force is greater than the force holding an electron in orbit around the nucleus.
How many electrons can be held in a third orbit?
8 for the 3rd orbit Actually there are 8 for the second. there are 18 for the third.
