Answer:
C) both
Explanation:
Lewis base -
Lewis base , are the species that have more electron density hence can easily donate its electron density .
The simple indication to determine , whether a species is a Lewis base or not is to look for negative charge or lone pairs of electrons ,
<u>The species having negative charge or lone pairs of electrons , in maximum case , are Lewis bases </u>.
Therefore from the question ,
ammonia and water both are Lewis bases .
Because both the species have lone pair of electrons , hence have more electron density and can easily donate its electron density .
The elements that have the same valence are, mainly, in the same principal groups (principal columns) of the periodic table.
The principal columns are 1, 2, 13, 14, 15, 16, 17 and 18.
For example:
1) the elements with valence 1+ are in the first column:H, Li, Na, K, Rb, Cs, Fr.
2) The elements with valence 2+ are in the second column: Be, Mg, Ca, Sr, Ba, Ra.
3) The elements with valence 2- are in the column 16: O, S, Se, Te, Pb
But also those elements may have other valences: S, Se and Te, have also valences 2, 4 and 6. And Pb have valences 2 and 4.
4) The elements with valences 1-, 1, 3, 5 and 7 are in the column 17: Cl, Br, I, At.
F, the first element of group 16, has valence 1- and 1+
Answer:
I need points for my Ap Calculs class
Explanation:
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Answer:
Its either B or D. I personally would go with B
Explanation:
The answer should be B - Nitrogen Dioxide.
