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What is the element that borrows the electrons in a chemical reaction called?
Any element can oxidize(take an electron from) another element during chemical reactions as long as it has a partial positive charge. The most common element that is an oxidizing agent is Hydrogen.
How do you determine the number of valence electrons?
It depends on what group or family the element is in. For example, Potassium is in the first group of family so it only has 1 valence electron. However, since nitrogen is in the 15 group of family, it does not have 15 valence electrons. For double digit families, you just take the second digit, and that is the number of valence electrons. Therefore, Nitrogen would have 5 valence electrons.
How can the number of core electrons be detemined from the periodic table?
Take carbon as an example.Carbon, indicated by it's atomic number, has 6 electrons. The number at the top of carbon's group is the number of valance electrons. Carbon has 4 valance elections.6 total electrons - 4 valance electrons= 2 core electrons in carbon=====================(try another element yourself to see this process )
How can you tell whether or not an element will react with others element?
Depending on how many valence electrons in the element has, The other element could take away a valence electron to make eight
Which elements have to gain or lose only one electron to become stable?
This is determine by the number of valence electron(which is found by locating the group number the atom resides in) the atom have. Once located, you then recall that all the atoms wants to obtain stability like the Nobel gases (located in group 8 of the periodic table).Ex. Sodium (Na) has 11 electron.To gain stability like the gases, Na will gain one more electron to look like the Nobel gas Neon (Ne)
What does the group of the element tell you about the element?
Just a disclaimer, I haven't studied this in a little while, so some information be a tad inaccurate, but that is what Google is for. A group of elements goes in columns along the periodic table. Besides groups having specific names, all elements in the same group have the same number of valence electrons, which are the electrons on the outermost 'ring' around the nucleus. For example, take the element Sodium, which has 11 total electrons. The first ring carries 2 electrons, and the rings from then on carry 8. So, 2+8=10, leaving 1 (11-10) electrons on the outermost shell. There is your number of valence electrons. Naturally, elements want a complete electron shell, which means a full set of 8 electrons. This plays into the ways element groups react with others. Group 1, the alkali metals, react well with group 17, the halogens.
How do you find valency of an element?
The number of electrons in the outermost energy shell is usually used in finding the valency of a given element. For instance elements that have two electrons in the outermost energy shell have valency 2.
What is the element that borrows the electrons in a chemical reaction called?
Any element can oxidize(take an electron from) another element during chemical reactions as long as it has a partial positive charge. The most common element that is an oxidizing agent is Hydrogen.
An element from group eighteen from the periodic table is?
An element from group eighteen from the periodic table is commonly referred to as a "noble" or "inert" gas. These elements have filled electron shells, and therefore they do not share, take or give away any electrons. As a group they do not react with othere elements to form compounds (with only a couple of rare exceptions).
What it take to become like a noble gas?
To become like a noble gas, an element must have a full outer electron shell, making it stable and unreactive. Elements achieve this by gaining or losing electrons to reach a total of 8 electrons in their outer shell, like the noble gases.
Does group 1 give or take valance electrons?
give
What elements gain 2 electrons when they combine with another element?
Oh, dude, elements that gain 2 electrons when they combine with another element are found in Group 16 of the periodic table, also known as the oxygen group. This includes elements like oxygen, sulfur, and selenium. So, like, when these elements bond with others, they're all like, "I'll take two electrons, thanks!"
What happens when you had a proton to the nucleus of an atom?
Im thinking you mean add instead of had? well when you add a proton it becomes a different element because each element has a different number of protons. When you add electrons or take away electrons they become ions. If the neutrons in the nucleus changes it becomes an isotope. To conclude, each element has its own unique proton count.
How do you determine the number of valence electrons?
It depends on what group or family the element is in. For example, Potassium is in the first group of family so it only has 1 valence electron. However, since nitrogen is in the 15 group of family, it does not have 15 valence electrons. For double digit families, you just take the second digit, and that is the number of valence electrons. Therefore, Nitrogen would have 5 valence electrons.
How do you calculate valency of an element?
The number of valence electrons is easily found. You can take a look at the periodic table, ignore the transistion metals and count. The first column has one valence electron, the second column has two and so on. The noble gases have eight--which makes sense because they tend to be chemically stable (fulfilling the octet rule).
How can the number of core electrons be detemined from the periodic table?
Take carbon as an example.Carbon, indicated by it's atomic number, has 6 electrons. The number at the top of carbon's group is the number of valance electrons. Carbon has 4 valance elections.6 total electrons - 4 valance electrons= 2 core electrons in carbon=====================(try another element yourself to see this process )
What does the number of valence electrons tell you about a given element?
If its positive it tells u that it has that number of valence electrons. If negative it tells you that it requires that number of electrons to make the valence electrons filled up/stable. If you know which Ion it is, you know the number of valence electrons of the neutral Atom. It corresponds to the group in the periodic table, the element is in. For example: Mg. It's in group 2, so it has 2 valence electrons. The oxidation number now tells you how many more or less electrons the atom has. For example: Mg(II) has 2 positive charges, hence two electrons less. That means it has 0 valence electrons. Take complete number of valence electrons, subtract the oxidation number and you get the number of valence electrons in the ion.
