The factors taken into account while comparing the sizes of ions to each other or to its neutral atom are to be stated. Concept introduction: A group of atoms having the number of electrons different from the number of protons is known as an ion. If the number of protons is more than the number of electrons, the particle is called a cation. If the number of electrons is greater than the protons, the particle is termed as an anion. To determine: The factors to be taken into account for giving an analogy between the sizes of ions or between the size of an ion and its neutral atom.

Question

How do Group VIA elements form ions? A) They lose protons B) They gain two protons C) They lose two electrons D) They gain two electrons Which substance consists of anions and cations? A) CaF2, Calcium Fluoride B) Br2, Bromine C) Ag, Silver D) SiO2, Silicon Dioxide A newly discovered element is assigned to Group VIIA (Group 7A) in the periodic table. What charge will ions of this new element have? A) 1- B) 2- C) 1+ D) 2+ Reactions occur when atoms, ions or molecules collide. In a reaction between magnesium and bromine atoms, how many atoms of bromine will react per atom of magnesium? A) 1 B) 2 C) 3 D) 4 Which compound exists as a solid crystal lattice of cations and anions at room temperature? A) BrCl B) CaCl2 C) SCl2 D) SiCl4

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Chapter 3, Problem 24Q

Interpretation Introduction

Interpretation: The factors taken into account while comparing the sizes of ions to each other or to its neutral atom are to be stated.

Concept introduction: A group of atoms having the number of electrons different from the number of protons is known as an ion. If the number of protons is more than the number of electrons, the particle is called a cation. If the number of electrons is greater than the protons, the particle is termed as an anion.

To determine: The factors to be taken into account for giving an analogy between the sizes of ions or between the size of an ion and its neutral atom.

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