Chemistry Orbitals Quiz

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Test your atomic structure skills.

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Maureen Macaranas

Philippines

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Chemistry Orbitals Quiz


Froggy Jumps Chemistry Orbitals QuizVersion en ligne Test your atomic structure skills. par Maureen Macaranas 1 A teacher shows a raisin bread to illustrate an atomic model where electrons are embedded in a positive “pudding.” Which model is being represented? a Thomson’s model b Dalton’s model c Bohr’s model 2 A student says: “Electrons orbit the nucleus like planets around the sun.” Which scientist’s model is the student describing? a Thomson’s model b Bohr’s model c Dalton’s model 3 An element belongs to Period 4, Group 17. Which element is it? a Chlorine (Cl) b Iodine (I) c Bromine (Br) 4 Which energy level can hold a maximum of 32 electrons? a 3rd b 4th c 2nd 5 How many sublevels are present in the 3rd energy level? a 3 b 2 c 4 6 How many orbitals are there in the p-sublevel? a 5 b 1 c 3 7 According to Bohr’s model, how many electrons are in the outermost shell of xenon (Z = 54)? a 8 b 4 c 2 8 Which statement correctly describes orbitals? a Exact locations of electrons b Fixed circular paths around the nucleus c Regions where electrons are most likely found 9 Which energy level can contain an s, p, d, and f sublevel? a 1st b 4th c 2nd 10 The maximum number of electrons in the f-sublevel is: a 18 b 6 c 14 11 Which element belongs to the same group as fluorine? a Oxygen b Sodium c Chlorine 12 Which of the following is the correct electron configuration of magnesium (Z = 12)? a 1s² 2s² 2p⁶ 3p² b 1s² 2s² 2p⁶ 3s² c 1s² 2s² 2p⁶ 4s² 13 Which element has the configuration [1s² 2s² 2p⁶ 3s² 3p³? a Sulfur b Phosphorus c Chlorine 14 What is the orbital diagram of carbon (Z = 6)? a ↑↓ ↑↓ ↑ ↑ ↑ b ↑↓ ↓↑ ↑↑ c ↑↓ ↑ ↑ 15 Which law explains why electrons fill each orbital singly before pairing? a Pauli exclusion principle b Hund’s rule c Aufbau principle 16 Which electron configuration represents calcium (Z = 20)? a 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² b 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² c 1s² 2s² 2p⁶ 3s² 3p⁶ 4p² 17 Which principle explains why electrons fill lower energy orbitals first before higher ones? a Quantum principle b Aufbau principle c Pauli exclusion principle 18 An element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵. Which element is this? a Selenium b Bromine c Krypton 19 A student drew the following orbital diagram for nitrogen: 1s (↑↓) 2s (↑↓) 2p (↑↑↑). Which statement is correct? a It violates Hund’s rule. b It violates Pauli exclusion principle. c It is correct. 20 A teacher asks: “Why do electrons not stay together in the same orbital if there are other empty orbitals available?” Which law answers this question? a Aufbau principle b Pauli exclusion principle c Quantum principle 21 Which of the following correctly identifies the period and group of calcium (Z = 20)? a Period 3, Group 2 b Period 4, Group 18 c Period 4, Group 2 22 An element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵. To which group does this element belong? a Group 18, because it has a complete outer shell b Group 17, because it has 7 valence electrons c Group 16, because it has 6 valence electrons 23 Which orbital diagram correctly represents chlorine (Z = 17)? a 1s (↑↓) 2s (↑↓) 2p (↑↓ ↑ ↑) 3s (↑↓) 3p (↑↓ ↑↓ ↑) b 1s (↑↓) 2s (↑↓) 2p (↑↓ ↑↓ ↑↓) 3s (↑↓) 3p (↑↓ ↑↓ ↑) c 1s (↑↓) 2s (↑↓) 2p (↑↓ ↑↓ ↑↓) 3s (↑↓) 3p (↑↓ ↑↓ ↑) 24 A student wrote the orbital diagram for phosphorus (Z = 15) as: 1s (↑↓) 2s (↑↓) 2p (↑↓ ↑↓ ↑↓) 3s (↑↓) 3p (↑↓ ↑). What error did the student make? a Skipped the 2s orbital b Violated Hund’s rule in the 3p sublevel c Overfilled the 2p sublevel 25 A student writes the electron configuration of sulfur (Z = 16) as: 1s² 2s² 2p⁶ 3s² 3p⁶. What mistake did the student make? a Wrote too many electrons (18 instead of 16) b Incorrectly placed electrons in the 2p sublevel c Skipped the 3s sublevel

Chemistry Orbitals Quiz

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Chemistry Orbitals QuizVersion en ligne

par Maureen Macaranas

A teacher shows a raisin bread to illustrate an atomic model where electrons are embedded in a positive “pudding.” Which model is being represented?

A student says: “Electrons orbit the nucleus like planets around the sun.” Which scientist’s model is the student describing?

An element belongs to Period 4, Group 17. Which element is it?

Which energy level can hold a maximum of 32 electrons?

How many sublevels are present in the 3rd energy level?

How many orbitals are there in the p-sublevel?

According to Bohr’s model, how many electrons are in the outermost shell of xenon (Z = 54)?

Which statement correctly describes orbitals?

Which energy level can contain an s, p, d, and f sublevel?

The maximum number of electrons in the f-sublevel is:

Which element belongs to the same group as fluorine?

Which of the following is the correct electron configuration of magnesium (Z = 12)?

Which element has the configuration [1s² 2s² 2p⁶ 3s² 3p³?

What is the orbital diagram of carbon (Z = 6)?

Which law explains why electrons fill each orbital singly before pairing?

Which electron configuration represents calcium (Z = 20)?

Which principle explains why electrons fill lower energy orbitals first before higher ones?

An element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵. Which element is this?

A student drew the following orbital diagram for nitrogen: 1s (↑↓) 2s (↑↓) 2p (↑↑↑). Which statement is correct?

A teacher asks: “Why do electrons not stay together in the same orbital if there are other empty orbitals available?” Which law answers this question?

Which of the following correctly identifies the period and group of calcium (Z = 20)?

An element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵. To which group does this element belong?

Which orbital diagram correctly represents chlorine (Z = 17)?

A student wrote the orbital diagram for phosphorus (Z = 15) as: 1s (↑↓) 2s (↑↓) 2p (↑↓ ↑↓ ↑↓) 3s (↑↓) 3p (↑↓ ↑). What error did the student make?

A student writes the electron configuration of sulfur (Z = 16) as: 1s² 2s² 2p⁶ 3s² 3p⁶. What mistake did the student make?