A noble gas with a high power of fog penetration used in aerodrome beacons is?
A. krypton B. argon C. helium D. neon Correct Answer: Option D – neon
Elements in the same period in the periodic table have the same?
A. number of shells B. atomic number C. chemical properties D. physical properties Correct Answer: Option A – number of shells
The maximum number of electrons in the L shell of an atom is?
A. 2 B. 8 C. 18 D. 32 Correct Answer: Option B = 8
The stability of the noble gases is due to the fact that they?
A. have no electron in their outermost shells B. have duplet or octet electron configurations C. belong to group zero of the periodic table D. are volatile in nature Correct Answer: Option B – have duplet or octet electron...Products
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