The species Ar,K⁺ and Ca²⁺ contain the same number of electrons.
The species Ar,K⁺ and Ca²⁺ contain the same number of electrons.In which order do their radii increase Options (a) Ca²⁺…
7 years ago
Classification of Elements and Periodicity
Which of the following orders of ionic radii is correctly represented
Which of the following orders of ionic radii is correctly represented Options (a) H⁻ > H⁺ > H (b) Na⁺…
7 years ago
Element having maximum electron affinity is
Element having maximum electron affinity is Options (a) F₂ (b) Cl₂ (c) Br₂ (d) I₂ Correct Answer: Cl₂Explanation:Electron affinity generally…
7 years ago
The electronic configuration of chalcogens is
The electronic configuration of chalcogens is Options (a) ns²np² (b) ns²np³ (c) ns²np⁴ (d) ns²np¹ Correct Answer: ns²np⁴Explanation:The elements of…
7 years ago
The first ionisation potential will be maximum for
The first ionisation potential will be maximum for Options (a) lithium (b) hydrogen (c) uranium (d) iron Correct Answer: hydrogenExplanation:No…
7 years ago
The amount of energy,which is released due to the addition of extra electron
The amount of energy,which is released due to the addition of extra electron to the outermost orbital of gaseous atom,is…
7 years ago
The total number of electrons present in all the p-orbitals of bromine is
The total number of electrons present in all the p-orbitals of bromine is Options (a) 18 (b) 5 (c) 35…
7 years ago
Which is a metalloid
Which is a metalloid Options (a) Arsenic (b) Oxygen (c) Phosphorus (d) Manganese Correct Answer: ArsenicExplanation:No explanation available. Be the…
7 years ago
In a period, the elements are arranged in strict sequence of
In a period, the elements are arranged in strict sequence of Options (a) increasing charge in the nucleus (b) equal…
7 years ago
Which of the following is the most electropositive element
Which of the following is the most electropositive element Options (a) Phosphorous (b) Magnesium (c) Aluminium (d) Sulphur Correct Answer:…
7 years ago