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- Subject
- Chemistry Mcqschemistry-mcqs
- Published
- 5 Jul 2021
- Last updated
- 28 May 2026
Explanation
The sodium ion (Na⁺) is smaller than the neutral sodium atom because it loses an electron, resulting in a decreased electron cloud and stronger effective nuclear charge. Conversely, a chloride ion (Cl⁻) is larger than a chlorine atom due to the addition of an electron causing increased electron-electron repulsion and expansion of the electron cloud.
More Chemistry Mcqs
Practice related questions from the same subject.
- 1.In what way do isotopes primarily differ from each other?
- 2.Which of the following compounds does not produce a positive result in the borax bead test?
- 3.Given that manganese has an atomic number of 25, what is its electronic configuration in the ground state?
- 4.Which gas is commonly employed to induce the ripening of unripe fruits artificially?
- 5.Which coagulant is commonly employed in the treatment of drinking water to aid purification?
- 6.Which of the following statements is incorrect?
- 7.Which of these air pollutants poses the greatest threat to the ozone layer?
- 8.Which atmospheric layer contains the highest concentration of the ozone layer?
Subcategories
- Alcohols Phenols and Ethers
- Aldehydes and Ketones
- Aliphatic Hydrocarbons
- Alkyl Halides
- Aromatic Hydrocarbons
- Atomic Structure
- Carboxylic Acids
- Chemical Bonding
- Chemical Equilibrium
- Chemistry Basic Concept
- Common Chemical Industries
- Diagnostic Test
- Electrochemistry
- Environmental Chemistry
- Experimental Techniques
- Gases
- Group III A and IVA Elements
- Group VA and VIA Elements
- Liquids and Solids
- Macromolecules
- Organic Chemistry
- Periodic Classification
- Reaction Kinetics
- S-BLOCK ELEMENTS
- Solutions
- The Halogens and The Noble Gases
- Thermochemistry
- Transition Elements