Based on the size of spheres given, the given atoms need to be matched with the size of spheres. Concept Introduction: Atomic radius is the distance between the centre of nucleus and the outermost shell of an atom. According to Quantum mechanical model of an atom, there is no specific distance from nucleus after which an electron may not be found. Hence, definition that is more specific is required for atomic radius. This can be defined as metallic radius and covalent radius. Metallic radius is the half distance of two adjacent nuclei of identical metal atoms. Covalent radius is half distance of two adjacent nuclei, connected via a chemical bond . In a periodic table, the atomic radius varies across the period and down the group. When moving down the group atomic radius increases as the electrons are added to a new shell. When moving across the period, the electrons are added to the same subshell and hence the atomic radius decreases as there is less shielding and attraction between nucleus and valence electron increases. The more the atomic radius, the large the size of the atom will be and vice-versa. To identify: The spheres that match with the size of the given atoms.

Question

Want to see the full answer?

Answer 1

Question

Chapter 4, Problem 4.48QP

Interpretation Introduction

Interpretation: Based on the size of spheres given, the given atoms need to be matched with the size of spheres.

Concept Introduction:

Atomic radius is the distance between the centre of nucleus and the outermost shell of an atom. According to Quantum mechanical model of an atom, there is no specific distance from nucleus after which an electron may not be found. Hence, definition that is more specific is required for atomic radius. This can be defined as metallic radius and covalent radius.

Metallic radius is the half distance of two adjacent nuclei of identical metal atoms.

Covalent radius is half distance of two adjacent nuclei, connected via a chemical bond.

In a periodic table, the atomic radius varies across the period and down the group. When moving down the group atomic radius increases as the electrons are added to a new shell. When moving across the period, the electrons are added to the same subshell and hence the atomic radius decreases as there is less shielding and attraction between nucleus and valence electron increases.

The more the atomic radius, the large the size of the atom will be and vice-versa.

To identify: The spheres that match with the size of the given atoms.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Identifying the stereochemistry of natural Write the complete common (not IUPAC) name of each molecule below. Note: if a molecule is one of a pair of enantiomers, be sure you start its name with D- or L- so we know which enantiomer it is. molecule H O-C-CH2 H3N. HN N H C=O common name (not the IUPAC name) NH3 ☐ H3N H ☐ CH2 X

> Draw the structure of alanine at pH 1.2. Click and drag to start drawing a structure.

Understanding the general acid-base properties of amino acids O Proteins Imagine each of the molecules shown below was found in an aqueous solution. Can you tell whether the solution is acidic, basic, or neutral? molecule The solution is... 010 H3N-CH-C-OH CH HO CH3 O acidic O basic neutral O (unknown) H3N HO 0 O acidic O basic neutral ○ (unknown) H3N-CH-C-O CH2 CH3-CH-CH3 O acidic O basic Oneutral ○ (unknown) O= X H2N-CH-C-O CH3 CH CH3 acidic O basic O neutral ○ (unknown) ? 000