Answer:
Explanation:
The electronic configuration is defined as the setting or the arrangement of electrons in the shells of an atom. Generally, the noble gases do not react and thus show inertness. This property is due to 8 electrons in their outermost shell except for Helium. Bromine is a non-metal that has 35 electrons.
When Bromine atom gains an electron then becomes ion and called as bromide ion and thus bromide ion contains 36 electrons. Krypton is a noble gas that has 36 electrons and thus its electronic configuration is .
<span>The alkaline earth metals are all of the elements in the second column (column 2A) of the periodic table. This group includes beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). Alkaline earth metals have only two electrons in their outermost electron layer</span>
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Answer:4 and 3
Explanation:just took the test
Answer:
131 mg
Explanation:
Percent yield = 89%
Actual yield = 117 mg
Percent yield is given by
The theoretical yield, for this reaction is 131 mg.