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Which of the following elements has the highest number of electrons?
a. Na
c. Ar
b. Be
d. Br​

Sagot :

Answer:

d. Br

Explanation:

Note that the number of electrons of a ne-u-tral element is equal to its atomic number.

Br has 35 electrons

Na has 11 electrons

Ar has 18 electrons

Be has 4 electrons

Therefore, Br has the highest number of electrons.

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