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Rubidium Ion Formation and Lewis Structure

Rubidium Ion Formation and Lewis Structure

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Lucas Foster

FREE Resource

The video tutorial explains how to draw the Lewis structure for rubidium (Rb) and its ion (Rb+). It begins by illustrating the Lewis structure for neutral rubidium, highlighting its single valence electron. The tutorial then transitions to the Rb+ ion, showing the removal of the valence electron and the resulting empty outer shell. The video emphasizes the importance of using brackets to denote the ion and clarifies that while the outer shell appears empty in the Lewis structure, the inner shells remain filled.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the video tutorial?

Drawing the Lewis structure for Rb+

Learning about covalent bonds

Explaining the periodic table

Discussing chemical reactions

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does rubidium (Rb) have in its outer shell?

Two

Three

Four

One

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the valence electron when forming Rb+?

It remains unchanged

It is added to the nucleus

It is shared with another atom

It is removed

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the removal of the valence electron signify in the formation of Rb+?

A change in color

A gain of energy

A loss of energy

A change in charge

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the Rb+ ion represented in the Lewis structure?

With two dots

With brackets and no dots

With a line

With a single dot

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are brackets used in the Lewis structure of Rb+?

To indicate it is a molecule

To denote its mass

To show it is an ion

To highlight its atomic number

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of the new outer shell in Rb+?

It is empty

It has one electron

It is full with eight electrons

It has two electrons

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