Question

Question 1

How many electrons must be lost by the metal strontium (Sr) in order for it to have a full valence shell, that is, in order for its valence shell to mimic that of a nobel gas?

1

2

3

4

Question 2

Which of the following atoms will always form an ionic compound whenever it interacts with another element?

O

I

Li

Xe

Question 3

What is the correct formula for an ionic compound formed between Al3+ and Se2-?

AlSe

Al2Se3

Al3Se2

That relationship cannot be determined without more information.

Question 4

What is the name of the following compound:   MgI2

Magnesium Iodide

Magnesium Iodine

Iodine Magneside

Fred

Question 5

What is the name of the following compound:        Fe2S3

Read all the answers carefully before choosing.

Iron Sulfide

Iron (II) Sulfide

Iron (III) Sulfide

Iron Sulfanate

Answer 1

Q1 Answer: Two (2)  electrons must be lost by the metal strontium (Sr) in order for it to have a full valence shell, that is, in order for its valence shell to mimic that of a nobel gas.

Q2.Answer: O(oxygen) atoms will always form an ionic compound whenever it interacts with another element.

Q3.Answer:Se2- is an anion (negative charge) and Al3+ is a cation (positive charge).They share their charges due to opposite attraction and form an ionic compound Al₂Se_3.

Q4.Answer:The name of the following compound MgI₂ is Magnesium Iodide.

Q5 Answer: The name of the following compound Fe2S3 is Iron (III) Sulfide.