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How many electrons are lost or gained in the element Ca as it changes into simple ions?
You already gave the answer yourself. You see, ions don't change the number of protons and neutrons of an atom. It only changes the number of electrons. Ca originally has 20 electrons, protons, and neutrons. If it becomes ionic; two of the electrons disappear, but the amount of protons and neutrons are still the same. Now since the two electrons disappear, you place a "2" behind the letters "Ca". And now because the amount of negativily charged particles (electrons) are less than positively charged particles (protons), the atom becomes positive! Hence the plus sign after the number "2"?
So the answer to your questions is 20. The only time the amount of protons and neutrons can change in an atom, is by the process of nuclear fission or fusion.
What else can I help you with?
Is mg ionic or simple molecular?
Mg is an ionic element. It typically forms cations by losing two electrons to achieve a stable electron configuration, making it an ionic element.
Has 2 electrons in the first shell 8 in the second and 6 in the third?
That is a total of 16 electrons. Assuming that this is a neutral atom, the number of electrons = the number of protons. Therefore, this atom has 16 protons, which is its atomic number. The element with atomic number 16 is sulfur.
How many electrons form ionic bonds?
This depends on the elemnts involved. The simple model of electron transfer to create octets is useful. In a cation with a charge of +1 one electron is lost, +2 two electrons etc. For anions when the charge is -1 one electron is gained, -2 two electrons gaine etc.
Why is peroxide considered a poly-atomic ion and not a simple ion?
Peroxide is considered a polyatomic ion because it is composed of more than one atom covalently bonded together. It has a unique structure and charge as a whole that cannot be explained by a single atom gaining or losing electrons. Simple ions are single atoms that have gained or lost electrons to obtain a full outer electron shell.
An atom of element X has two outer electrons that do not fill the outer shell is it a metal?
It would be a non-metal and a halogen. Group 18 or the noble gases, all have 8 electrons in their outer shell. Therefore, the group before it would have seven electrons in the outer shell. This group is made up of all non-metals.
What is the difference between oxidation and reduction?
AnswerOIL RIG is the simple answer for REDOX. It shows that oxidation is loss of electrons while reduction is the gain of electrons. It is also that they both occur simultaneously, this is a couple reaction where the electrons lost by a reductant has to be gained by an oxidant. Oxidation is also the increase in oxidation number of the element being acted upon and reduction results in the decrease of the oxidation number on the element being reduced.
Is mg ionic or simple molecular?
Mg is an ionic element. It typically forms cations by losing two electrons to achieve a stable electron configuration, making it an ionic element.
How can you determine the number of electrons in an element from the Periodic Table?
Well, to keep it simple, the number of electrons is usually the number of protons in the element, which is the atomic number. For instance, hydrogen has 1 proton and 1 electron, while Lead, Pb, has 82 protons and electrons. This is, of course, when the elements are naturally occuring. There are isotopes for elements which change the number of protons or electrons, thus changing the charge.
The chemistry of life is centered on the chemistry of the element oxygen?
It is not base on Oxygen, it is based of Carbon. Why? A simple answer, is because Carbon can bond with many other compounds and elements since it has 4 valence electrons. Oxygen has 6 valence electrons.
Why are electrons not included in the atomic mass of an element?
They usually are, in fact. However, the combined weight of the electrons in an element makes up less than 0.03%, which means any value that includes them has too many decimal values below 1 to be used in everyday simple chemistry, and overcomplicates basic chemistry (such as that in high schools).
What element utilized a pair of electrons to form a covalent bond?
Mostly Nitrogen (having three simple covalent bonds) uses its lone pair of electrons to form the 4th covalent bond (actually coordinate covalent or dative bond).
Try to find a simple mathematical equation that tells you the link between the charge on a non-metal ion and its group number?
The charge on a non-metal ion can be found by using the formula: charge = group number - 8. This equation is based on the fact that non-metal ions typically gain electrons to achieve a full valence shell, with the number of electrons gained corresponding to the difference between the group number of the element and 8.
What is an atom called when it no longer has a neutral charge?
An atom with no electric charge will be called a neutral atom. In a neutral atom, there is a balance of charges, and the number of protons will be equal to the number of electrons. It's really that simple. Compare this to atoms that have an imbalance of charges. These atoms are called ions.
Smallest form of a element?
This simple form of a chemical element is the atom.
Explain the role of an element's electrons in determining its chemical reactivity?
Electrons differ in the amount of energy they have and how tightly they are held by the protons in the nucleus. Based on these properties, chemists describe an atom's electrons as belonging to certain energy levels. Usually it is the electrons in the highest energy level of an atom that determine how that atom reacts.
What is the simplest substance?
Simple,the element.
Is chlorine a simple element?
yes
