Ionic bond

1-Metal atom lose one or more valence electron & change to ................

5-The electronic configuration of sodium ion (Na+) is similar to that of .....    a- 7N   b- 18Ar    C- 10Ne    d- 8O

4-Explai : Water that contains dissolved ionic compounds is a good conductor of electricity.

1-Formed when valence electrons move from a metal atom to non-metal atom.

4-During the chemical reactions, metal atoms tend to ..............electrons and change into .............ions.

7-An element (X), whose atomic number is 13 so, the number of electrons in its ion is ……… a- 8 b. 10 c. 11 d. 12

3-A strong attraction occurs between (+ve) ion & (-ve) ion forming ............................................

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2-Non atom gain one or more valence electron & change to ..............

6-Atoms lose, gain, or share electrons and become chemically stable as ……… a-an electron. B. an ion. C. a metal. D. a noble gas.

5-ionic Compounds    a-Solid and brittle .    b- High melting & boiling points.    c-Dissolve in water. d-conduct electricity if dissolved in water      e- all

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