Helium is an unreactive gas and neon is a gas of extremely low reactivity. What (if anything) do their atoms have in common?
Helium and neon both belong to the noble gases group in the periodic table. The key feature they have in common is their electronic configuration. Both helium and neon have full outer electron shells, which makes them very stable and largely unreactive.
Helium (He) has 2 electrons, filling its 1s orbital.
Neon (Ne) has 10 electrons, with its electron configuration ending in a filled 2p orbital (1s² 2s² 2p⁶).
This full outer shell configuration is what contributes to their chemical inertness.
Which of the following is likely to be least stable?
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Which of the following is not a Lewis acid?
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Which of the following is not a property of compounds?
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Which of the following is polar?
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Which of the following metals exists in their native state in nature?
A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)
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