two
I Just did the test and its ONE- Apex
9,10
Two - MgCl2
Two
6 degenerate orbitals allows for seven electrons, five of which are unpaired. ans is 6
two
two
One
it has 2 because the first energy level has 1
I Just did the test and its ONE- Apex
One
the same number of electrons needed to fill their octet, the same number of valence electrons,
A noble gas element has as many valence electrons as are needed to completely fill its valence shell: 2 for helium and 8 for all the others. Since a filled valence shell is the condition that other atoms are most likely to reach during chemical reaction, the noble gases are unreactive except with extremely electronegative elements such as fluorine, for which the chemical driving force for gaining an electron to fill the fluorine valence shell is stronger than the energy input required to extract an electron from one of the heavier noble gas atoms.
It depends on the atom. List what element the atom is from.
lone pair of electrons & bonded pairs of electrons
9,10
8 - s2 and p6