Identify each statement as true or false: (a) Cations are larger than their corresponding neutral atoms.

Guida verificata passo dopo passo

Step 1: Understand the concept of cations. Cations are positively charged ions that are formed when an atom loses one or more electrons.

Step 2: Consider the effect of losing electrons on the size of an atom. When an atom loses electrons, it has more protons than electrons. This causes the electrons to be pulled closer to the nucleus, making the atom smaller.

Step 3: Compare the size of a cation to its corresponding neutral atom. Since a cation is an atom that has lost electrons and thus become smaller, it is generally smaller than its corresponding neutral atom.

Step 4: Based on the above understanding, the statement 'Cations are larger than their corresponding neutral atoms' is generally false.

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Atomic Size and Ionization

Atomic size refers to the distance from the nucleus to the outermost electron shell. When an atom loses one or more electrons to form a cation, the remaining electrons experience a stronger effective nuclear charge, pulling them closer to the nucleus and resulting in a smaller ionic radius compared to the neutral atom.

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01:19

Ionization Energy

Cations vs. Neutral Atoms

Cations are positively charged ions formed when an atom loses electrons. This loss of electrons reduces electron-electron repulsion in the electron cloud, allowing the remaining electrons to be drawn closer to the nucleus, which decreases the size of the ion compared to its neutral counterpart.

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01:36

Atoms vs. Ions

Trends in Ionic Radii

Ionic radii trends indicate that cations are generally smaller than their neutral atoms due to the loss of electrons and increased nuclear attraction. This trend is essential for understanding the behavior of elements in the periodic table and their interactions in chemical reactions.

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