Lesson -- intro to ionic names formulas

Presentation

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Chemistry

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9th - 12th Grade

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Practice Problem

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Easy

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NGSS

HS-PS1-1, MS-PS1-1, HS-PS1-2

Standards-aligned

TRACEY RANKIN

Used 4+ times

FREE Resource

9 Slides • 9 Questions

You have learned how electrons move from one atom to another to form ionic bonds.
In the picture, oxygen is becoming an ion.
Oxygen is in Group 6, so it already has 6 valence e-
To become an ion, it takes 2e-
But lithium atoms only have 1e- to give, so another lithium atom is needed for oxygen to have a full 8e- shell.

The formula for this compound is
Li₂O

Draw

Draw the bond between calcium, Ca, and chlorine, Cl.

Write the formula for this compound.

Open Ended

To name a chemical compound with an ionic bond, change the ending of the anion by adding "-ide".

Type the names of these compounds.

**It's OK if you don't really know how to spell it.

Type response here

Remember this assignment?

Criss-cross Method

Rule #1.
Do not write charges.

Draw

Use the Criss-Cross method to write the chemical formula for a bond between potassium, K, and oxygen, O.

Draw

Write the formula for a bond between magnesium, Mg, and bromine, Br.

Rule #2. Same numbers cancel

Roman Numerals

Open Ended

Type the formula for iron(II) fluoride.

Type response here

Open Ended

Type the formula for cobalt(III) bromide.

Type response here

Draw

Write the chemical formula for copper(II) chloride.

Draw

Write the chemical formula for zinc(I) oxide.

Draw

Write the chemical formula for lead(IV) iodide.

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