SCIENCE
PHYSICAL SCIENCES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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anions
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noble gasses
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halogens
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alkaline-earth metals
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Detailed explanation-1: -Answer. Anion The electronic configuration of many ions is that of the closest noble gas to them in the periodic table.
Detailed explanation-2: -Hydrogen is a very special element of the periodic table and doesn’t belong to any family.
Detailed explanation-3: -Group 1A and 2A of the periodic table, alkali metals and alkaline earth metals respectively, always form cations. In contrast, Group 17A, which consists of halogens, always forms anions. Most metals (e.g., iron, lead, gold) form cations, whereas most nonmetals (e.g., oxygen, nitrogen, sulfur) form anions.
Detailed explanation-4: -Helium and the other elements in its column are very unreactive. They don’t ever form anions or cations.
Detailed explanation-5: -Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).