Scelta multipla
A cation is an element that _____ one or more electrons to form _____ ions.
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- 1. Intro to General Chemistry4h 5m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
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- 23. Chemistry of the Nonmetals2h 39m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
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- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
Ions
Scelta multipla
An atom of magnesium has lost two electrons. It is known as a(n) ________.
A
cation
B
anion
C
neutral atom
D
isotope
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Guida verificata passo dopo passo1
Understand the terms: An atom is neutral when it has equal numbers of protons and electrons. When electrons are lost or gained, the atom becomes charged.
Recall that losing electrons results in a positive charge because there are now more protons than electrons.
Recognize that a positively charged ion formed by losing electrons is called a cation.
Note that an anion is a negatively charged ion formed by gaining electrons, which is not the case here.
Therefore, an atom of magnesium that has lost two electrons is called a cation.
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