Same chapter3 marksDifficulty: Medium
Explain the formation of a molecule of methane, naming the type of bond.
Atomic Structure and Chemical Bonding
3 marksDifficulty: Medium
What are isotopes? Give one example and state why they have the same chemical properties.
Original Khojo Papers practice question — not from a past board paper.
Answer
Isotopes are atoms of the same element with the same atomic number but different mass numbers, because they contain different numbers of neutrons. Protium, deuterium and tritium are the isotopes of hydrogen. They have the same chemical properties because chemical behaviour depends on the electronic configuration, which is the same for all of them.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Their physical properties, which depend on mass, do differ.
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