
HC Electron Configuration & Ionic Bonding
Quiz
•
Chemistry
•
10th - 11th Grade
•
Easy
Standards-aligned
Matthew Owen
Used 16+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
Zinc
Copper
Nickel
Germanium
Answer explanation
The electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ corresponds to zinc, which has an atomic number of 30. This configuration shows a complete filling of the 3d subshell and the 4s subshell, characteristic of zinc.
Tags
NGSS.HS-PS1-1
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
3
6
8
10
Answer explanation
The electron configuration 1s² 2s² 2p⁶ indicates there are 2 electrons in the 1s subshell, 2 in the 2s, and 6 in the 2p subshell. Adding these gives a total of 10 electrons in the atom, making 10 the correct answer.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the electron configuration of Iodine?
[Kr]5s24d105p6
[Kr]5s25d105p5
[Kr]5s25d106p6
[Kr]5s24d105p5
Answer explanation
Iodine has an atomic number of 53. Its electron configuration fills up to 5p, resulting in [Kr]5s²4d¹⁰5p⁵. The correct choice reflects this configuration, confirming that iodine has 5 electrons in the 5p subshell.
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following ions does not have the same number of electrons as Krypton, Kr?
Se-2
Sr-2
Rb+
As-3
Answer explanation
Krypton (Kr) has 36 electrons. Se-2 has 34, Rb+ has 36, and As-3 has 36. However, Sr-2 has 38 electrons, which is not the same as Kr.
Tags
NGSS.HS-PS1-1
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is a valence electron?
an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.
Answer explanation
A valence electron is specifically an electron located in the outermost shell of an atom. These electrons are crucial for chemical bonding and determine the atom's reactivity.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the number of valence electrons for Oxygen?
8
6
2
1
Answer explanation
Oxygen has 6 valence electrons, which are found in its outer shell. This is determined by its position in the periodic table, where it is in group 16, indicating it has 6 electrons available for bonding.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many valence electrons does calcium have?
2
4
6
7
Answer explanation
Calcium is in group 2 of the periodic table, which means it has 2 valence electrons. This is the outermost shell of electrons that participate in chemical bonding.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
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