Problem: Name the element described in the following: Forms 2+ ion with electron configuration [Ar] 3d3.
🤓 Based on our data, we think this question is relevant for Professor Davidson's class at UTSA.
FREE Expert Solution
Neutral element: Atomic number = # protons = # of electrons
- Cation with charge = 2+: lost 2 electrons
- Recall:
s orbital → can hold a maximum of 2 electrons
p orbitals → can hold a maximum of 6 electrons
d orbitals → can hold maximum of 10 electrons
f orbitals → can hold maximum of 14 electrons
Electron configuration: [Ar]3d3
- [Ar]: atomic # = 18 → 18 e-
- [Ar] = 1s22s22p63s23p6
- 3d3 → 3 e- in d orbital
Total electrons in cation = 18 + 3 = 21
Total electrons of neutral element = 21 + (2) = 23
- electron configuration of neutral element: 1s22s22p63s23p64s23d3
- transition metals → lose e- from highest energy orbital (4s)
- s orbital first before the d orbital
Problem Details
Name the element described in the following: Forms 2+ ion with electron configuration [Ar] 3d3.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Electron Configuration concept. You can view video lessons to learn Electron Configuration. Or if you need more Electron Configuration practice, you can also practice Electron Configuration practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Davidson's class at UTSA.
What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.