Chemistry, 01.07.2019 04:00 faithlopez209
Plz which of the following pairs of elements could possibly be found in the same group on the periodic table? a forms a 2+ ion; b is an alkaline earth metal. a is a noble gas; b forms a 1- ion. a has 3 valence electrons; b is a halogen. a forms a 2- ion; b has the atomic number 12.
Answers: 1
Chemistry, 22.06.2019 16:00
Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.
Answers: 3
Chemistry, 23.06.2019 08:00
The biosphere of the earth is made up of . a. inorganic b. organic
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If a computer chip switches off -on-off in 0.015 us, what is the switching time in nanoseconds?
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Plz which of the following pairs of elements could possibly be found in the same group on the peri...
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