D.i think hope i help:):)
Answer:
1 pair of nonbonded electrons
3 pairs of bonded electrons
Explanation:
N has 5 electrons in its valence shell while O has 6.
Lewis structure of NO²⁻ is in the image.
N is in the middle of the structure because is the less electronegative atom. 3 electrons of this atom are forming the bonds and 2 electrons are nonbonded.
As you can see, N has 3 pairs of electrons forming 3 bonds with Oxygens and there is 1 pair of nonbonded electrons.
1. NON-POLAR MOELCULE.
2. HYDROGEN BOND OR HYDROGEN BONDING.
3. POLAR MOLECULE.
4. UNSATURATED SOLUTION.
5. SOLUBILITY CHART.
6. HETEROGENEOUS MIXTURE.
7. SCATTERING OF LIGHT, COLLOID.
8. SOLVENT.
9. SOLUTE.
10. HOMOGENEOUS MIXTURE.
11. AN ALLOY.
12. DISSOLVE.
13. EQUILIBRIUM.
14. SOLUBILITY.
15. SUPERSATURATED.
16. SATURATED.
17. INSOLUBLE.
18. MOLARITY , MOLALITY.
19. ACID.
20. BASE.
21. pH scale.
22. pH .
It’s easy, if the PH of any acidic solution = -Log[H+], where [H+] is hydrogen ion concentration, multiply each term by (-1) then raise each term as a power to (10), so it will become like this:-
[H+] = 10^(-PH)
Answer:
The number of valence electrons increases from top to bottom within each group.
Explanation:
The valence electrons are the outermost shell electrons.
Therefore, the number of valence electrons does not increase from top to bottom within each of the group.
Down a group, the number of valence electrons remains the same.
For group I elements, the number of electrons is 1.
The group is the vertical arrangement of elements.
From left to right across a period, the number of valence electrons increases because you move from group to group.