What is the name of the family, which includes the elements of the main subgroup of the seventh group of the periodic system.
| December 16, 2020 | education
What is the name of the family, which includes the elements of the main subgroup of the seventh group of the periodic system. 2) how many electrons on the outer level of the atom: A) chlorine B) Sicily C) cesium
Halogens are elements of the 7th group of the main subgroup
Halogens: Сl2, F2, Br2, I2
All these elements have a covalent non-polar bond
Chlorine has 7
Silicium has 4
Cesium 1
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