Question

Отметь ряд веществ с ионной, металлической и ковалентной связью: 1 ) Zn,Ne,H2 2 ) KBr,MgO,NaF 3 ) Cl2,HF,F2 4 ) CaO,Fe,SO2

Answer 1

Ответ:

4) CaO, Fe, SO2........

Answer 2

1. Zn, Ne, H2
2. KBr, MgO, NaF
3. Cl2, HF, F2
4. CaO, Fe, SO2

In each set, the substances with ionic bonding are KBr, MgO, NaF, and CaO. These substances are formed by the transfer of electrons between atoms with significantly different electronegativities, resulting in the formation of positive and negative ions that are held together by electrostatic attraction.

The substances with metallic bonding are Zn and Fe. Metallic bonding occurs between metal atoms, where the valence electrons are delocalized and can move freely throughout the metal lattice, creating a "sea" of electrons that holds the metal atoms together.

The substances with covalent bonding are H2, Cl2, HF, F2, and SO2. Covalent bonding involves the sharing of electrons between atoms, usually between nonmetal atoms. In covalent compounds, the atoms are held together by the shared electron pairs.