3 years ago

Which of the following pairs of elements would have the most similar properties?

Chemistry

2 answers:

mote1985 [20]3 years ago

8 0

The answer would have to be B

34kurt3 years ago

6 0

Answer:

Explanation:

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sleet_krkn [62]

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A spring scale is MOST useful in measuring _____.

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What happens when sodium and sulfur combine

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It emits hydrogen sulfide...smells like rotten eggs..

ty:)pls let me know whether this is ryt:D

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Using complete subshell notation (1s22s22p6, and so forth), predict the electron configuration of each of the following atoms: a

masha68 [24]

Answer: a) $C:6:1s^22s^22p^2$

b) $P:15:P:1s^22s^22p^63s^23p^3$

c) $Sb:1s^22s^22p^63s^23p^64s^23d^{10}4p^64d^{10}5s^25p^3$

Explanation:

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration:

a) $C:6:1s^22s^22p^2$

b) $P:15:P:1s^22s^22p^63s^23p^3$

c) $Sb:1s^22s^22p^63s^23p^64s^23d^{10}4p^64d^{10}5s^25p^3$

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