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2. Atoms and the Periodic Table

Isotopes

2. Atoms and the Periodic Table

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Indicate if the atoms in each pair have the same number of protons, neutrons, or electrons. (4.4, 4.5)c. ⁴⁰₁₈Ar, ³⁹₁₇Cl

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Argon has three naturally occurring isotopes, with mass numbers 36, 38, and 40.a. Write the atomic symbol for each of these atoms.

Consider the following atoms in which X represents the chemical symbol of the element: (4.4, 4.5) ¹⁶₈X ¹⁶₉X ¹⁸₁₀X ¹⁷₈X ¹⁸₈Xd. What atoms have the same number of neutrons?

Consider the following atoms in which X represents the chemical symbol of the element: (4.4, 4.5) ¹⁶₈X ¹⁶₉X ¹⁸₁₀X ¹⁷₈X ¹⁸₈Xc. Which atoms have the same mass number?

Consider the following atoms in which X represents the chemical symbol of the element: (4.4, 4.5) ¹⁶₈X ¹⁶₉X ¹⁸₁₀X ¹⁷₈X ¹⁸₈Xa. What atoms have the same number of protons?

Complete the following table for the three naturally occurring isotopes of silicon, the major component in computer chips: (4.4, 4.5)

For each representation of a nucleus A through E, write the atomic symbol and identify which are isotopes. (4.4, 4.5) Proton (red) Neutron (white)a.

Multiple Choice

Which of the following answers give the correct number of subatomic particles for ?

Multiple Choice

Which of the following answers give the correct number of subatomic particles for ?

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