Atoms and Elements

Practice Questions

College Chemistry › Atoms and Elements

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1

What is the full electron configuration of sodium?

2

What is the electron configuration for $\text{Cd}^{2+}$ ?

3

When a $_{13}^{28}\textrm{\textbf{Al}}$ atom undergoes bombardment with an $\alpha$ particle, neutrons, and an isotope of phosphorus are produced. What is the mass number of phosphorus?

4

What is the daughter nuclide when $\text{Th-235}$ undergoes beta decay?

5

What is the daughter nuclide when $\text{Np-288}$ undergoes alpha decay?

6

Which of the following gives a set of quantum numbers that cannot exist?

7

What is the electron configuration for $\text{Cd}^{2+}$ ?

8

What is the full electron configuration of sodium?

9

Which of the following represents the absorption of a photon with the highest energy?

10

Which of the following gives a set of quantum numbers that cannot exist?

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