Noble gases are very stable because their outermost electron shells contain the maximum number of electrons that those outermost shells can possess.
This is a correct statement. Yes.
metals.this is because metals contain "free electrons" in thier outermost shells which are weakly held by the nucleus. so they are able to donate electrons
Elements that contain four valence electrons include elements from group 14 of the periodic table, such as carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). These elements have their outermost electron shell filled with four electrons and display a variety of chemical properties based on this electron configuration.
Valency is the number of electrons in the outer shell the charge is how many electrons is needed to form an octet (full valence = 8 electrons) Eg. Sulfur valence = 6 charge = -2 (needs to gain 2 electrons to gain an octet)
The spheres surrounding the nucleus of an atom are called protons and neutrons, protons hold the electrons in orbit around the nucleus because a proton has a positive charge which attracts the electron which has a negative charge causing electromagnetic force which holds the electron in orbit. The neutron determines the isotope of the atom but has a neutral charge.
First of all, ''orbit'' is not the right word.You mean shell.The shells are divided into blocks and the blocks are divided into orbitals in which the electrons are situated. An outermost shell which may contain maximum number of 8 electrons is normally composed of 2 blocks - the s block with 1 orbital and p block with 3 orbitals.As a rule every orbital may contain maximum number of 2 electrons so such shell with these 2 blocks would contain maximum number of 8 electrons. When all these 8 electrons have filled all of the outermost p and s orbitals of an atom, the energy of such system is at its lowest value.And as a rule the atoms are trying to do this because when the energy is in its lowest value they are in their most stable condition.If the electrons were 7 for instance one orbital would remain have filled which would raise the energy and the condition would be less stable. The outermost shell of the noble gases is filled with the maximum number of electrons - its p orbital posses 6 and its s - 2 electrons which gives 8.That's why these gases are inert.They don't need to remove or gain electrons because this would raise the energy and the stability is going to be damaged.
An oxygen atom has eight electrons. The first electron shell can contain two electrons so that shell is filled leaving six electrons left. Since the second electron shell can contain up to eight electrons, the remaining six electrons go into the second shell. Since the second shell is the outermost shell, there are six electron's in the outer energy level.
1: The outermost ring of hydrogen is the s-level, which can contain only two electrons, and a hydrogen atom itself already has one of these electrons.
metals.this is because metals contain "free electrons" in thier outermost shells which are weakly held by the nucleus. so they are able to donate electrons
Lithium atoms contain one unpaired electron. Two of the three total electrons in a lithium atom are paired in its lowest energy s orbital, which can contain only two.
Well, darling, francium is a wild child with only one electron in its outermost shell. It's living life on the edge, ready to jump into any chemical reaction that comes its way. Just one electron, but oh boy, does it make a splash!
Elements that contain four valence electrons include elements from group 14 of the periodic table, such as carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). These elements have their outermost electron shell filled with four electrons and display a variety of chemical properties based on this electron configuration.
three, as follows:the 4s orbital is full with 2 electronsthe 4p orbitals contain only 1 electron (of a possible 6)
According to the Octect Rule, an atom is most stable when its outermost shell has 8 electrons. So atoms try to attain 8 electrons in their outer shell.
two electrons
A neutral potassium atom would contain 19 electrons because the atomic number of potassium is 19, which represents the number of protons and electrons in a neutral atom.
Valency is the number of electrons in the outer shell the charge is how many electrons is needed to form an octet (full valence = 8 electrons) Eg. Sulfur valence = 6 charge = -2 (needs to gain 2 electrons to gain an octet)
The spheres surrounding the nucleus of an atom are called protons and neutrons, protons hold the electrons in orbit around the nucleus because a proton has a positive charge which attracts the electron which has a negative charge causing electromagnetic force which holds the electron in orbit. The neutron determines the isotope of the atom but has a neutral charge.