This question refers to isolated gaseous species. The species $$$\mathrm{F}^{-}, \mathrm{Ne}$$$ and $$$\mathrm{Na}^{+}$$$are isoelectronic. This means they have the same number of electrons. In which order do their radii increase?

Chemistry

IGCSE&ALevel

CAIE

Exam No：9701_m24_qp_12 Year：2024 Question No：18

Answer:

Knowledge points:

9.1.1 describe qualitatively (and indicate the periodicity in) the variations in atomic radius, ionic radius, melting point and electrical conductivity of the elements

9.1.2 explain the variation in melting point and electrical conductivity in terms of the structure and bonding of the elements

Solution:

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This question refers to isolated gaseous species. The species $$\(\mathrm{F}^{-}, \mathrm{Ne}\)$$ and $$\(\mathrm{Na}^{+}\)$$are isoelectronic. This means they have the same number of electrons. In which order do their radii increase?

Answer:

Knowledge points:

Solution:

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