Valency example sentences

"Valency" Example Sentences

1. The valency of oxygen is two as it needs two electrons to complete its outermost shell.
2. The valency of sodium is one, as it only has one electron in its outermost shell.
3. The valency of chlorine is seven, as it needs to gain one electron to complete its outermost shell.
4. The valency of carbon is four, as it can share four valence electrons to complete its outermost shell.
5. The valency of nitrogen is three, as it can share three valence electrons to complete its outermost shell.
6. The valency of hydrogen is one, as it only has one electron in its outermost shell.
7. The valency of calcium is two, as it needs to lose two electrons to complete its outermost shell.
8. The valency of iron is two or three, depending on its oxidation state.
9. The valency of sulfur is two or six, depending on its oxidation state.
10. The valency of phosphorus is three or five, depending on its oxidation state.
11. The valency of fluorine is one, as it only needs one electron to complete its outermost shell.
12. The valency of bromine is one, three, five or seven, depending on its oxidation state.
13. The valency of mercury is two, as it needs to lose two electrons to complete its outermost shell.
14. The valency of lead is two or four, depending on its oxidation state.
15. The valency of oxygen in ozone is three, as it shares three valence electrons with two other oxygen atoms.
16. The valency of nitrogen in ammonia is three, as it shares three valence electrons with three hydrogen atoms.
17. The valency of carbon in methane is four, as it shares four valence electrons with four hydrogen atoms.
18. The valency of iron in FeCl2 is two, as it loses two electrons to form Fe2+ ion.
19. The valency of aluminum in Al2O3 is three, as it gains three electrons to form Al3+ ion.
20. The valency of chlorine in HClO4 is seven, as it gains one electron from hydrogen and six electrons from four oxygens.
21. The valency of nitrogen in NO2 is four, as it shares two valence electrons with two oxygens and has one lone pair.
22. The valency of sodium in NaCl is one, as it donates one electron to chlorine.
23. The valency of sulfur in SO2 is four, as it shares two valence electrons with two oxygens and has one lone pair.
24. The valency of copper in CuSO4 is two or four, depending on its oxidation state.
25. The valency of oxygen in water is two, as it shares two valence electrons with two hydrogen atoms.
26. The valency of carbon in ethene is two, as it shares two valence electrons with two other carbons.
27. The valency of nitrogen in nitrate ion (NO3-) is five, as it shares three valence electrons with three oxygens and has one lone pair.
28. The valency of chlorine in Cl2 is zero, as it has a complete outermost shell with eight electrons.
29. The valency of hydrogen in H2 is one, as it shares one valence electron with another hydrogen atom.
30. The valency of helium is zero, as its outermost shell is already complete with two electrons.

Common Phases

1. The valency of an atom is its ability to bond with other atoms;
2. Valence electrons determine the valency of an atom;
3. Different elements have different valencies;
4. Valency plays a crucial role in chemical reactions;
5. Valency can be determined by the group number of an element;
6. The concept of valency was first introduced by Edward Frankland in 1852;
7. Valency can be positive or negative depending on the nature of the bond;
8. Valence shell electron pair repulsion (VSEPR) theory explains the valency of molecules;
9. Valency can be calculated by the number of electrons an atom can gain, lose, or share in a chemical bond;
10. Valency also determines the oxidation state of an element in a compound.