Question 3 (1 point) How many electrons are in an ion formed from an atom locate

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Question 3 (1 point)

How many electrons are in an ion formed from an atom located in group 2A and period 5?

Question 3 options:

37 electrons

38 electrons

36 electrons

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Question 4 (1 point)

For a 3d orbital, respectively n = _____ and l = _____

Question 4 options:

3, 1

3, 2

2, 3

3, 3

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Question 5 (1 point)

Write the ground state electron configuration for chromium.

Question 5 options:

[Ar]4s23d4

[Ar]4s13d5

[Ar]4s13d45s1

Ar]3d6

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Question 6 (1 point)

What is the electron configuration of a copper (II) ion?

Question 6 options:

[Ar]3d9

[Ar]4s13d8

[Ar]4s23d7

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Question 7 (1 point)

What is the ground-state electron configuration of Calcium?

Question 7 options:

1s22s22p6

1s22s22p63s23p64s2

1s22s22p63s2

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Question 8 (1 point)

For a 4s orbital, respectively n = _____ and l = _____

Question 8 options:

4, 0

1, 0

4, 1

1, 4

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Question 9 (1 point)

What is the maximum number of orbitals found in the 3rd energy level or shell?

Question 9 options:

9

3

18

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Question 10 (1 point)

In what block, group, and period on the periodic table can the atom with a 1s22s22p63s23p64s23d104p7 ground-state electron configuration be found?

Question 10 options:

p-block, group 7A, and period 3

p-block, group 7A, and period 5

p-block, group 7A, and period 4

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Question 11 (1 point)

Based on the following electron configuration, [Kr]5s24d105p5, this element would most likely _____.

Question 11 options:

loss an electron to form a -1 anion and could form an ionic bond with a metal

gain an electron to form a -1 anion and could form an ionic bond with a metal

gain an electron to form a -1 anion and could form an ionic bond with a non-metal

37 electrons

38 electrons

36 electrons

Explanation / Answer

3)

identify the element, then Z number, this is Strontioum with Z = electrons = 38,

4)

For a 3d orbital, respectively n = _____ and l = _____

3 --> n = 3

s,p,d,f ... then 0 = s; p = 1, d = 2

the l = 2

5)

for chrmoiuum

[Ar] 3d5 4s1

6)

for Copper:

[Ar] 3d10 4s1

stripping 2 electrons:

1s2 2s2 2p6 3s2 3p6 3d9.

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