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Why is atom of sulfur smaller than an atom of silicon despite sulfur having more mass?
Because as you add more electrons to the same valence shell, the effective nuclear charge increases and thus holds the valence shell closer.
When chlorine gains an electron to become a chloride ion with a -1 charge it ends up with the same electron arrangement as argon. Why doesn't it become an argon atom?
It doesn't become an argon atom because it (Cl-) still has 17 protons, and an argon atom has to have 18 protons.
How many positive charges does argon atom have?
Argon is usually electrically neutral and has no charge. It is possible to ionize it, however (at very high temperatures or by means of a high voltage) at which point it would have a positive charge.
Does argon exist as a single atom?
Yes. Argon has its outer electron shell full so doesn't easily react with other atoms.
What is the nuclear charge of a zinc atom?
Zinc has 30 protons; the term "nuclear charge" is rarely used.
An atom of argon rarely bonds to an atom of another element because an argon atom has?
An atom of argon has a completely filled outer shell. If you know about bonding, you will get what I mean. The argon atom does not want to give or receive or give electrons because it is already as stable as possible.
How many electrons are in the outer shell of an argon atom?
The electron configuration of argon is [Ne] 3s2 3p6. From this, we can see that the outer shell contains eight electrons.
An atom of argon rarely bonds to an atom of another element because an argon atom has what?
Atoms of argon have a full outer (valence) shell, and this is why argon is inert. The electrons of an atom have different energy levels. It's conventional to call each collection of possible states of electrons for a given energy level a shell. Shells have finite capacity and argon has a full outer shell. Chemical reactions tend to rely on electrons jumping from one atom to another or two sharing the orbit of 2 electrons (a type of shell around 2 electrons if you like). If the shells are full it is usually more energy efficient for an electron to stay put rather than jump to another atom. consequently argon with its full shells rarely bonds.
Why is atom of sulfur smaller than an atom of silicon despite sulfur having more mass?
Because as you add more electrons to the same valence shell, the effective nuclear charge increases and thus holds the valence shell closer.
Why is an atom of sulfur smaller than an atom of silicon despite sulfur having more mass?
Because as you add more electrons to the same valence shell, the effective nuclear charge increases and thus holds the valence shell closer.
An electron in an atom's outer shell is shielded from the nucleus by what?
The negative charge of electrons in the inner shell(s) of the atom.
When chlorine gains an electron to become a chloride ion with a -1 charge it ends up with the same electron arrangement as argon. Why doesn't it become an argon atom?
It doesn't become an argon atom because it (Cl-) still has 17 protons, and an argon atom has to have 18 protons.
What is the nuclear charge of a zinc atom?
Zinc has 30 protons; the term "nuclear charge" is rarely used.
How many positive charges does argon atom have?
Argon is usually electrically neutral and has no charge. It is possible to ionize it, however (at very high temperatures or by means of a high voltage) at which point it would have a positive charge.
Does argon exist as a single atom?
Yes. Argon has its outer electron shell full so doesn't easily react with other atoms.
How do positive and negative charges in the outer shell of an atom connect with each other?
The outer shell of an atom is populated by electrons, which have a negative charge. Protons, which have a positive charge hang out in the nucleus of the atom.
What is the nuclear charge of an atom with mass of 23 and an atomic number of 11?
The atomic number of 11 means there are 11 protons in the nucleus, giving the atom a nuclear charge of +11. The atom in question is a Sodium atom.
