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Chemistry, 12.10.2019 13:30 4804174946

Which of these statements is incorrect regarding an atom of the element scandium?

a. its chemical symbol is sc.
b. it has 21 positively charged protons in its nucleus.
c. it has 21 neutrons in its nucleus.
d. it has 21 negatively charged electrons.

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Which of these statements is incorrect regarding an atom of the element scandium?

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