Chemistry · May / June 2021 · Paper 12 · Question 28
The proton number of caesium is 55. Compared with lithium, the melting point of caesium is ......1...... and the reaction of caesium with water is ......2...... vigorous. The number of valence electrons in caesium is ......3...... compared to lithium. Which words correctly complete gaps 1, 2 and 3?
- Ahigher more the same
- Bhigher less the same
- Clower more greater
- Dlower more the same
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Correct answer: D. lower more the same
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