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Leona [35]
3 years ago
15

Which group of elements has the most similar chemical properties? (1 point)

Chemistry
1 answer:
enot [183]3 years ago
6 0

Answer:

carbon nitrogen and oxygen

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1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons
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Answer:

1.   Si^{-4}

2.  Co^{+2}

Explanation:

An ion is formed when an atom that is said to be neutral gains or losses electrons.

It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.

Atomic number is the total number of protons and electrons in a neutral atom.

From the information

Protons = 14

electron = 18

Net Charge = no of proton - no of electron

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Without using Appendix B, predict the sign of ΔS° for(b) KBr(s)→ KBr(aq)
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Examine the phases of the species present to determine whether a physical or chemical process will cause an increase or decrease in entropy. Keep in mind "Silly Little Goats" to aid you in telling.

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brainly.com/question/13146879

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