Which of the following atoms has the same number of neutrons as 9Be?
2 answers:
Answer : Option B) 
Explanation : The option which has same number of neutrons as that of
is
As, has 5 neutrons in its atom, the mass number of is 10.
So, when it has 5 protons and 5 electrons in it then it would has 5 neutrons which is similar to that of.
has 4 protons and 4 electrons in its atom which means it has (9 - 4) = 5 neutrons.
From, the above it is clear that is the correct choice amongst the given options.
Explanation : The option which has same number of neutrons as that of
As,
So, when it has 5 protons and 5 electrons in it then it would has 5 neutrons which is similar to that of
From, the above it is clear that
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Answer:
Double replacement.
Explanation:
Chemical Reactions => Double Replacement Reactions.
Let's call Ted as T, Emily as E, Jack as J, and Brenda as B.
In the first match, we have T and E playing against J and B; and in the second match, we have T and B playing against J and E. We can state a 'reaction' of this if the first match would be the reactants and the second match the products:
You can note that this is similar to a double replacement reaction, remember that a double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. The general form of a double-replacement reaction is:
which is similar to the reaction of the game, so the answer would be Double replacement.