Atomic numbers and electron configurations assignment and quiz

Which is the electron configuration for boron? 1s22s3 1s22s23s1 1s12s22p2 1s22s22p1

1s22s22p1

Which is the electron configuration for zinc? 1s22s22p63s23p64s23d8 1s22s22p63s23p64s13d10 1s22s22p53s23p64s23d10 1s22s22p63s23p64s23d10

1s22s22p63s23p64s23d10

Which is the electron configuration for bromine? 1s22s22p63s23p64s23d104p5 1s22s22p63s23p64s23d104p6 1s22s22p63s23p44s23d104p5 1s22s22p63s23p64s23d94p5

1s22s22p63s23p64s23d104p5

Use the periodic to fill in the numbers in the electron configurations shown below. B: 1s2 2sA2pB A = ? B = ?

A = 2 B = 1

To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure? Orbital notation takes up less space. Orbital notation shows the spin of the electrons. Orbital notation makes it easier to count the electrons. Orbital notation shows the electron distribution in shells.

Orbital notation shows the spin of the electrons.

Which diagram shows a pair of electrons that have opposite spins?

a

Which diagram shows the correct electron configuration for fluorine (F)? a. b. c

a

Which of the following sets of quantum numbers describe valid orbitals? Check all that apply. n = 1, l = 0, m = 0 n = 2, l = 1, m = 3 n = 2, l = 2, m = 2 n = 3, l = 0, m = 0 n = 5, l = 4, m = -3 n = 4, l = -2, m = 2

n = 1, l = 0, m = 0, n = 3, l = 0, m = 0, n = 5, l = 4, m = -3

Type in the maximum number of electrons that can be present in each shell or subshell below. n = 5 shell: ? n = 2 shell: ? n = 2, l = 0 subshell: ? n = 2, l = 1 subshell: ? 3d subshell: ? 2s subshell: ? 5f subshell: ?

n = 5 shell: 50 n = 2 shell: 8 n = 2, l = 0 subshell: 2 n = 2, l = 1 subshell: 6 3d subshell: 10 2s subshell: 2 5f subshell: 14

Which set of numbers gives the correct possible values of l for n = 3? 0, 1, 2 0, 1, 2, 3 -2, -1, 0, 1, 2 -3, -2, -1, 0, 1, 2, 3

0, 1, 2

Which is the electron configuration for lithium? 1s2 2s3 1s22s1 1s12s2

1s22s1

Identify one disadvantage to each of the following models of electron configuration: Dot structures Arrow and line diagrams Written electron configurations Type in your answer below.

Did your answer include at least one of the items listed in each category below? Dot structures do not show the distribution of electrons in orbitals and take up a lot of space. Arrow and line diagrams take up a lot of space and make it difficult to count electrons. Written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

dentify one advantage to each of the following models of electron configuration: Dot structures Arrow and line diagrams Written electron configurations Type in your answer below.

Did your answer include at least one of the items listed in each category below? Dot structures make it easy to count electrons and they show the number of electrons in each electron shell. Arrow and line diagrams show the spin of electrons and show every orbital. Written configurations require minimal space and show the distribution of electrons between subshells.

Use the periodic table to identify the element indicated by each electron configuration by typing in the chemical symbol for the element. 1s22s22p6: ? 1s22s22p63s23p3: ? 1s22s22p63s23p64s1: ? 1s22s22p63s23p64s23d8: ? 1s22s22p63s23p64s23d104p65s24d3: ?

1s22s22p6: Ne 1s22s22p63s23p3: P 1s22s22p63s23p64s1: K 1s22s22p63s23p64s23d8: Ni 1s22s22p63s23p64s23d104p65s24d3: Nb

Match each set of quantum numbers to the correct subshell description by typing in the correct number. 1: n = 2, l = 0 2p: ? 2: n = 3, l = 2 3d: ? 3: n = 1, l = 0 2s: ? 4: n = 2, l = 1 4f: ? 5: n = 4, l = 3 1s: ?

2p: 4 3d: 2 2s: 1 4f: 5 1s: 3

If a shell can hold a maximum of 32 electrons, what is the value of n? 2 3 4 5

4

Two representations of the distribution of electrons in the potassium atom are shown. Model 1 Model 2 1s22s22p63s23p64s1 mc017-1.jpg Which model is useful in showing the reactivity of potassium? Neither model is able to show the reactivity of potassium. Model 1 because it shows an electron in the 4s orbital. Model 2 because it shows an electron in the outermost ring. Both models because each shows an electron in the outermost shell.

Both models because each shows an electron in the outermost shell.

Na: 1s22sC2pD3sE C = ? D = ? E = ?

C = 2 D = 6 E = 1

Use the periodic table to answer the questions below. Which diagram shows the correct electron configuration for nitrogen (N)? a.mc001-1.jpg b.mc001-2.jpg c.mc001-3.jpg

b

The electron configuration for Helium (He) is shown below. 1s2 Which diagram shows the correct distribution of electrons in the electron shells of a helium atom?

c

The electron configuration for aluminum (Al) is shown below: 1s22s22p63s23p1 Which diagram shows the correct distribution of electrons in the electron shells of an aluminum atom?

c

Consider the electron configuration. mc011-1.jpg mc011-2.jpg mc011-3.jpgmc011-4.jpgmc011-5.jpg mc011-6.jpg mc011-7.jpgmc011-8.jpgmc011-9.jpg 1s 2s 2p 3s 3p Which element has this electron configuration? astatine bromine chlorine fluorine

chlorine

Each atom of an element has the following electron configuration. 1s22s22p63s23p64s23d104p65s24d105p5 What is the name of the element? bromine iodine tellurium xenon

iodine

For the n = 3 electron shell, which of the following quantum numbers are valid? Check all that apply. l = 3 m = 3 l = 0 m = -2 l = -1 m = 2

l = 0, m = -2, m = 2

Consider the model of a sodium atom. mc015-1.jpg Which feature does the model show accurately? the size of the electrons in different shells the shapes of the orbitals in different shells the distribution of electrons in different shells the orientation of the orbitals in different shells

the distribution of electrons in different shells