Chemistry
Explain the following:
Group 17 elements are strong non-metals, while group 1 elements are strong metals.
Periodic Table
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Answer
Metals lose electrons whereas non-metals gain electrons to attain stable electronic configuration. Group 1 elements are placed on the left in the periodic table whereas Group 17 elements are towards right. Hence, the atomic size of Group 1 elements is greater when compared to the corresponding Group 17 elements as atomic size decreases from left to right across a period due to increase in nuclear charge. Due to this Group 1 elements can easily lose electrons making them strong metals. It is difficult for Group 17 elements to lose electrons due to stronger nuclear pull but it helps in attracting electrons from other elements making them strong non-metals.
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Related Questions
Among the elements given below, the element with least Electronegativity is:
- Lithium
- Boron
- Carbon
- Fluorine
The most electronegative element from the following element is:
- Magnesium
- Chlorine
- Aluminium
- Sulphur
Explain the following:
Metallic character of elements decreases from left to right in a period while it increases in moving down a group.
Explain the following:
Halogens have a high electron affinity.