Complete each sentence with the correct vocabu- lary word(s). 1. The are located to the left of the stair-step line on the periodic table. 2. Different structural forms of the same element are called 3. Positively charged ions are surrounded by freely moving electrons in 4. A(n) is a molecule comprised of two atoms. 5. The __ are in Groups 3 through 12 on the periodic table. Checking Concepts Choose the word or phrase that best answers the question. 6. When magnesium and fluorine react, what type of bond is formed? A) metallic C) covalent B) ionic D) diatomic 7. What type of bond is found in a piece of pure gold? A) metallic C) covalent B) ionic D) diatomic 8. Because electrons move freely in metals, which property describes metals? A) brittle C) dull B) hard D) conductors

Question

Complete each sentence with the correct vocabu- lary word(s). 1. The are located to the left of the stair-step line on the periodic table. 2. Different structural forms of the same element are called 3. Positively charged ions are surrounded by freely moving electrons in 4. A(n) is a molecule comprised of two atoms. 5. The __ are in Groups 3 through 12 on the periodic table. Checking Concepts Choose the word or phrase that best answers the question. 6. When magnesium and fluorine react, what type of bond is formed? A) metallic C) covalent B) ionic D) diatomic 7. What type of bond is found in a piece of pure gold? A) metallic C) covalent B) ionic D) diatomic 8. Because electrons move freely in metals, which property describes metals? A) brittle C) dull B) hard D) conductors

Answer 1

### 1. metals### 2. allotropes### 3. metallic bond### 4. diatomic molecule### 5. transition metals### 6. B) ionic### 7. A) metallic### 8. D) conductors

Answer 2

## Step1: Identify the vocabulary word for the left of the stair-step line on the periodic table### Elements located to the left of the stair-step line on the periodic table are metals.## Step2: Identify the vocabulary word for different structural forms of the same element### Different structural forms of the same element are called allotropes.## Step3: Identify the vocabulary word for positively charged ions surrounded by freely moving electrons### Positively charged ions surrounded by freely moving electrons are found in a metallic bond.## Step4: Identify the vocabulary word for a molecule comprised of two atoms### A molecule comprised of two atoms is called a diatomic molecule.## Step5: Identify the vocabulary word for elements in Groups 3 through 12 on the periodic table### Elements in Groups 3 through 12 on the periodic table are transition metals.## Step6: Determine the type of bond formed between magnesium and fluorine### Magnesium and fluorine react to form an ionic bond.## Step7: Determine the type of bond found in a piece of pure gold### A piece of pure gold contains a metallic bond.## Step8: Identify the property of metals due to freely moving electrons### Because electrons move freely in metals, they are conductors.#

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