Elements And Compounds Short Quiz! Trivia

1. Compounds are substances that are made of

One type of atom

Two or more different types of atoms

Compounds are substances that are made up of two or more different types of atoms. This means that in order for a substance to be considered a compound, it must consist of atoms from at least two different elements. This is because compounds are formed through chemical bonding between different elements, resulting in the creation of a new substance with unique properties. Therefore, the correct answer is "two or more different types of atoms".

Explanation

Compounds are substances that are made up of two or more different types of atoms. This means that in order for a substance to be considered a compound, it must consist of atoms from at least two different elements. This is because compounds are formed through chemical bonding between different elements, resulting in the creation of a new substance with unique properties. Therefore, the correct answer is "two or more different types of atoms".

2. Substances that contain atoms that are all the same are called

Elements

Compounds

Mixtures

Elements are substances that contain atoms that are all the same. Each element is made up of atoms with the same number of protons in their nucleus. These atoms cannot be broken down into simpler substances through chemical reactions. Examples of elements include oxygen, carbon, and gold. Compounds, on the other hand, are substances made up of two or more different elements chemically combined. Mixtures are combinations of different substances that are physically mixed together but not chemically bonded.

Explanation

Elements are substances that contain atoms that are all the same. Each element is made up of atoms with the same number of protons in their nucleus. These atoms cannot be broken down into simpler substances through chemical reactions. Examples of elements include oxygen, carbon, and gold. Compounds, on the other hand, are substances made up of two or more different elements chemically combined. Mixtures are combinations of different substances that are physically mixed together but not chemically bonded.

3. Sodium (Na) is considered an element while sodium chloride (NaCl) is considered a compound. This is because of sodium chloride

Is a solid at room temperature

Is used to flavor foods

Is made from two different elements

Is made from the same types of atoms

Sodium chloride (NaCl) is considered a compound because it is made from two different elements, sodium (Na) and chlorine (Cl). Compounds are formed when two or more different elements chemically combine together. In the case of sodium chloride, sodium and chlorine atoms combine in a fixed ratio to form a stable compound with distinct properties. Sodium, on the other hand, is considered an element because it consists of only one type of atom.

Explanation

Sodium chloride (NaCl) is considered a compound because it is made from two different elements, sodium (Na) and chlorine (Cl). Compounds are formed when two or more different elements chemically combine together. In the case of sodium chloride, sodium and chlorine atoms combine in a fixed ratio to form a stable compound with distinct properties. Sodium, on the other hand, is considered an element because it consists of only one type of atom.

4. The smallest part of all matter is a(n)

Molecule

Element

Atom

Cell

All solids, liquids, and gases are made up of tiny particles called atoms.

Explanation

All solids, liquids, and gases are made up of tiny particles called atoms.

5. Which of the following elements would be malleable?

Carbon (C)

Iron (Fe)

Option 3

Option 4

Metals are malleable or easy to bend. Iron (Fe) is found on the left side of the Periodic Table so it is a metal.

Explanation

Metals are malleable or easy to bend. Iron (Fe) is found on the left side of the Periodic Table so it is a metal.

6. Which is not a compound?

OH

CO

Fe

NO

Two capital letters mean two DIFFERENT elements (OH - Oxygen and Hydrogen, CO - Carbon and Oxygen, NO - Nitrogen and Oxygen)

Explanation

Two capital letters mean two DIFFERENT elements (OH - Oxygen and Hydrogen, CO - Carbon and Oxygen, NO - Nitrogen and Oxygen)

7. What is the difference between CO and Co?

CO is made from one type of atom

CO is an element and Co is a compound

Co is made from two types of atoms

CO is a compound and Co is an element

CO is a combination of the two elements Carbon (C) and Oxygen (O). Co is the symbol for the element Cobalt. Remember, there are no elements with two capital letters as a symbol.

Explanation

CO is a combination of the two elements Carbon (C) and Oxygen (O). Co is the symbol for the element Cobalt. Remember, there are no elements with two capital letters as a symbol.

8. Because of its location on the Periodic Table, Calcium (Ca) is a

Metal

Nonmetal

Metalloid

Option 4

Calcium (Ca) is on the left side of the Periodic Table.

Explanation

Calcium (Ca) is on the left side of the Periodic Table.

9. Sulfur (S) is a nonmetal. Which would be a porperty of Sulfur?

Ductile

Dull

Malleable

Shiny

ductile, malleable and shiny are all characteristics of metals

Explanation

ductile, malleable and shiny are all characteristics of metals

10. How many atoms of nitrogen are in NH₄?

0

1

4

5

When a symbol in a chemical formula (in this example N for Nitrogen) does not have a little number in front of it, there is only one atom of that element.

Explanation

When a symbol in a chemical formula (in this example N for Nitrogen) does not have a little number in front of it, there is only one atom of that element.

11. Which would most likely be brittle?

Potassium (K)

Platinum (Pt)

Phosphorus (P)

None

Nonmetals are brittle or easy to break. Phosphorus is on the right side of the Table and is, therefore, a nonmetal.

Explanation

Nonmetals are brittle or easy to break. Phosphorus is on the right side of the Table and is, therefore, a nonmetal.