Writing Isotope Symbols for Ions Write the isotope symbols for ions that have the following numbers of protons, neutrons, and electrons. (a) 35 protons, 44 neutrons, and 36 electrons (b) 13 protons, 14 neutrons, and 10 electrons (c) 47 protons, 62 neutrons, and 46 electrons

Question

Writing Isotope Symbols for Ions

Write the isotope symbols for ions that have the following numbers of protons, neutrons, and electrons.

(a) 35 protons, 44 neutrons, and 36 electrons

(b) 13 protons, 14 neutrons, and 10 electrons

(c) 47 protons, 62 neutrons, and 46 electrons

Accepted Answer

(a) The atomic number (the number of protons) is 35, indicating the element symbol is Br. The mass number is the sum of the protons and neutrons, which is 79. The charge is 1– because there is one more electron than protons. The symbol is [latex]^{79}_{35}Br^{-}[/latex].

(b) The atomic number is 13, so the element symbol is Al. The mass number is 27. The charge is 3+ because there are three fewer electrons than protons. The symbol is [latex]^{27}_{13}Al^{3+}[/latex].

(c) The atomic number is 47, so the element is silver (Ag). The mass number is 109. The charge is 1+ because the number of electrons is one less than the number of protons. The symbol is [latex]^{109}_{47}Ag^{+}[/latex].

Question 2.6: Writing Isotope Symbols for Ions Write the isotope symbols f...

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