Potassium is in group 1 of the Periodic Table, so the answer is 1 electron.
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An iodine atom has 46 core electrons. Core electrons are the inner electrons that are not involved in chemical bonding. In the case of iodine, the core electrons would include the 36 electrons found in the first four electron shells.
Fluorine is a halogen. All halogens have 7 valence electrons. There are thus 7 valence electrons for Fluorine, 2 in the 2s orbital, and 5 in the 2p orbitals.
You would need 1 more electron to make a Chlorine atom stable with 7 valence electrons. This additional electron would allow Chlorine to achieve a full valence shell of 8 electrons, following the octet rule.
Hydrogen has 1 valence electron, phosphorus has 5 valence electrons, and oxygen has 6 valence electrons. So, if you totaled all of the valence electrons in the ion HPO42- you'd get 1 + 5 + 6 X 4 + 2 = 32. However, you should realize that the term "valence electron" really only applies to individual atoms, not compounds. The only electrons one would concern themselves with in the HPO42- ion are the 2 that make it an ion.
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An atom of chlorine has 7 valence electrons because it is in group 17 of the periodic table.
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The are none.
The Lewis structure for K3N would show three potassium (K) atoms each bonded to a nitrogen (N) atom. Potassium has one valence electron, while nitrogen has five valence electrons. The structure would display the bonding pairs between the potassium and nitrogen atoms.
A dot diagram, or Lewis dot structure, illustrates the valence electrons of an atom. Calcium (Ca) has two valence electrons, represented by two dots, while potassium (K) has one valence electron, represented by a single dot. Therefore, the dot diagram for calcium would show two dots around the symbol, while potassium would show one dot.
An inner electron, such as those found in the core of an atom, would be a non-example of a valence electron. These electrons are not involved in chemical bonding and are therefore not considered valence electrons.
They are the electrons in the outermost shell, and are the ones involved in most chemical reactions.
There are 6 valence electrons in tellurium On the 5th energy level, it's valence shell
Helium has 2 valence electrons, and it's the only noble gas that doesn't have 8 valence electrons.
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Eight valence electrons would complete the out shell. If the outer shell was complete it would still be called the same thing, however the charges would be different.