Transition Metals

Choose the statement that defines transition elements correctly.

• A transition element is one that forms cations with a completely filled d-subshell of electrons

• A transition element is one that forms at least one compound with a partially filled d-subshell of electrons

• A transition element is one that can speed up then the rate of chemical reactions in industrial processes

• A transition element is one whose compounds dissolve in water to form aqueous solutions which are colored

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NGSS.HS-PS1-1

Predict the characteristic of transition metal elements Ti to Cu of atomic number 22 to 29.

• Good electrical and heat conductor

• Have a uniform decrease in atomic radius

• Have two electrons in the 4s orbital

• Have lower first ionization energy than the alkali metals

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NGSS.HS-PS1-1

Indicate electron configuration of Mn³⁺ ion. (Mn = 25)

• [Ar]4s² 3d¹⁰

• [Ar]4s² 3d²

• [Ar]3d⁵

• [Ar]3d⁴

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NGSS.HS-PS1-1

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The total number of electrons in the 3d orbital of Ti³⁺ is (Given Ti = 22)

• 1

• 2

• 3

• 4

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NGSS.HS-PS1-1

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Select the element that forms a colorless compound with the oxidation state of +4

• Ti

• V

• Cr

• Mn

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify which of the following ions are most likely to form coloured compounds

• Sc³⁺

• Cu⁺

• Zn²⁺

• Cr³⁺

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

The ground state electronic configuration of Cr is

• [Ar] 4s¹ 3d⁵

• [Ar] 4s² 3d⁴

• [Ar] 3d⁴

• [Ar] 4s¹ 3d³

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Choose the correct electron configuration for cobalt. (Co = 27)

• [Ar]4s² 3d⁶

• [Ar]4s² 3d⁷

• [Ar]4s² 3d⁵

• [Ar]4s² 3d⁴

Tags

NGSS.HS-PS1-1

Identify which of the following are paramagnetic

• Ni²⁺

• V⁵⁺

• Ti⁴⁺

• Mn⁷⁺

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following element is not transition metal?

• Copper

• Iron

• Zinc

• Manganese