This chemical element is fluorine (F).
(a) The element with electron configuration: 1s2 2s2 2p6 3s2 3p5; (b)A noble gaseswith f electrons; (c) a fifth-period element whose atoms have three unpaired pelectrons; (d) First row transition metals having one 4s electron.
what column of the periodic table contains elements whose electron configurations end with d4
All alkaline earth metals have electron configurations ending in s2; 6s2 would be the alkaline earth metal in period 6 of the PTE, which is barium.
number of electrons = 42
electron
There are a total of 14 electrons in this electron configuration. The element whose atomic number corresponds to 14 is silicon.
no of electrons in any atom is equal to the atomic number of that element so no of electron is 80
no of electrons in any atom is equal to the atomic number of that element so no of electron is 80
They don't. Of the main group, or representative elements, group 1 elements are the only ones whose atoms have only 1 electron in their outermost energy levels.
the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.
(a) The element with electron configuration: 1s2 2s2 2p6 3s2 3p5; (b)A noble gaseswith f electrons; (c) a fifth-period element whose atoms have three unpaired pelectrons; (d) First row transition metals having one 4s electron.
what column of the periodic table contains elements whose electron configurations end with d4
Assuming the atom is neutral, the atomic number is equal in magnitude to the number of electrons, which is 22. This element is titanium, which has an atomic number of 22.
Electron
All alkaline earth metals have electron configurations ending in s2; 6s2 would be the alkaline earth metal in period 6 of the PTE, which is barium.
This is because they only have on valance electron. This makes it easier to react with other elements and more often also.
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