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Be's 4th electron will have four quantum numbers:
n l m s
(1) 1 0 0 +1/2
(2) 1 1 +1 +1/2
(3) 2 0 0 - 1/2
(4) 2 1 0 +1/2
Ans: 2 0 0 - 1/2
The number of appositively charged ions surrounded a certain ion in an ionic crystal lattice is known as co- ordination number.
Preparation of chemical reagents I. Purpose of the Experiment A reagent is any substance in a chemical reaction. Different reagents are used for laboratory experiments
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Pb(NO)3 + Na3Po4 --> NaNo3 + PbPO4
Ask queatomic number atomic radius graph stion #Minimum 100 words accepted#
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