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Element having atomic no.of 56 belongs to which of the following block of periodic table
Options
(a) p-block
(b) d-block
(c) f-block
(d) s-block
Correct Answer:
s-block
Explanation:
Consider Barium having atomic number 56
It’s electronic configuration is 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶6s²
It contain 2 electrons in the valence shell, hence it is placed in 2 group of the periodic table that means s-block element.
Related Questions: - The heat of neutralization of a strong base and a strong acid is 57 kJ.
- A mixture of two salts is not soluble in water but dissolves completely in dilu
- When CO₂ is passed through solution of calcium hydroxide,Which one of the
- A unit cell of sodium chloride has four formula units.The edge length of the unit cell
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Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The heat of neutralization of a strong base and a strong acid is 57 kJ.
- A mixture of two salts is not soluble in water but dissolves completely in dilu
- When CO₂ is passed through solution of calcium hydroxide,Which one of the
- A unit cell of sodium chloride has four formula units.The edge length of the unit cell
- The volume occupies by one molecules of water is [density of water =1g/cm³
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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