Unit 4 - Molecular Geometry

An ionic bond results from electrostatic (+/-) attraction between large numbers of

• cations and anions

• atoms

• dipoles

• orbitals

Tags

NGSS.HS-PS1-3

To draw a Lewis Structure, it is NOT necessary to know

• which atoms are in the molecule

• bond energies

• the number of valence electrons for each atom

• the number of atoms in the molecule

Molecules that cannot be represented by a single Lewis Structure are said to have

• dipole

• covalent

• hybrid

• resonance

The Lewis Dot Notation for an atom of chlorine is

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Tags

NGSS.HS-PS1-1

The Lewis Structure for a molecule of bromine is

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Tags

NGSS.HS-PS1-4

An ion of an element differs from an atom of that same element with respect to

• mass

• number of protons

• number of neutrons

• number of electrons

What is the ionic charge of the Al in the formula AlBr₃?

• 0

• +1

• +2

• +3

The correct Lewis Structure used to show an ionic combination of potassium and bromine is

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A certain atom has 17 protons, 18 neutrons, and 17 electrons. The ion of this atom has an ionic charge of –1. The ion would have

• 18P 18N 17 e

• 16P 18N 17e

• 17P 18N 18e

• 17P 18N 16e

Tags

NGSS.MS-PS1-1

A bond that involves shared pairs of electrons is called a(n)

• ionic bond

• covalent bond

• metallic bond

• intermolecular bond