Question

True or False : The valency of an element is determined by the number of electrons present in ` outermost shell of that element.`​

Answer 1

Explanation:

• Valency of an element is determined by the number of valence electrons present in the outermost shell of its atom. Valencies remain same in a group, due to this reason elements in a group show similar. properties. Valency increases from 1 to 4 and then decreases to zero in a period.

Answer 2

Answer:

TRUE

Valence electrons determine whether an atom forms cations, anions, or covalent compounds. Atoms with: One to three valence electrons - tend to form positive ions. Five to seven valence electrons - tend to form negative ions. Four valence electrons - form covalent bonds The number of electrons in an atom's outermost valence shell governs its chemical properties.

Explanation:

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