Combining Elements And Compounds! Chemistry Trivia Quiz

1. An ion forms when

An atom loses or gains electrons

An atom loses or gains neutrons

An atom loses or gains protons

Two elements combine

An ion forms when an atom loses or gains electrons. This process is known as ionization. When an atom loses electrons, it becomes positively charged and is called a cation. Conversely, when an atom gains electrons, it becomes negatively charged and is called an anion. The gain or loss of electrons is responsible for creating an imbalance in the atom's positive and negative charges, resulting in the formation of an ion.

Explanation

An ion forms when an atom loses or gains electrons. This process is known as ionization. When an atom loses electrons, it becomes positively charged and is called a cation. Conversely, when an atom gains electrons, it becomes negatively charged and is called an anion. The gain or loss of electrons is responsible for creating an imbalance in the atom's positive and negative charges, resulting in the formation of an ion.

2. Positive ions can only combine with other positive ions and negative ions can only combine with other negative ions.

True

False

The statement that positive ions can only combine with other positive ions and negative ions can only combine with other negative ions is false. In reality, positive and negative ions can combine to form ionic compounds through the process of ionization. This occurs when a positively charged ion, known as a cation, is attracted to a negatively charged ion, known as an anion, resulting in the formation of a stable compound. Therefore, positive and negative ions can combine with each other to form compounds with a neutral charge.

Explanation

The statement that positive ions can only combine with other positive ions and negative ions can only combine with other negative ions is false. In reality, positive and negative ions can combine to form ionic compounds through the process of ionization. This occurs when a positively charged ion, known as a cation, is attracted to a negatively charged ion, known as an anion, resulting in the formation of a stable compound. Therefore, positive and negative ions can combine with each other to form compounds with a neutral charge.

3. Negative ions are called anions and they gain electrons.

True

False

Negative ions are called anions because they have gained electrons. Anions are formed when an atom or molecule gains one or more electrons, resulting in a negatively charged ion. Therefore, the statement is true.

Explanation

Negative ions are called anions because they have gained electrons. Anions are formed when an atom or molecule gains one or more electrons, resulting in a negatively charged ion. Therefore, the statement is true.

4. Positive ions are called anions and they lose electrons.

True

False

The given statement is incorrect. Positive ions are actually called cations, not anions. Cations are formed when an atom loses electrons, resulting in a net positive charge. Anions, on the other hand, are negatively charged ions formed when an atom gains electrons. Therefore, the correct answer is False.

Explanation

The given statement is incorrect. Positive ions are actually called cations, not anions. Cations are formed when an atom loses electrons, resulting in a net positive charge. Anions, on the other hand, are negatively charged ions formed when an atom gains electrons. Therefore, the correct answer is False.

5. A substance made from two or more different atoms is called a ________.

A substance made from two or more different atoms is called a compound. In a compound, the atoms are chemically bonded together, creating a new substance with unique properties. Compounds can be formed through various chemical reactions, such as the combination of elements or the reaction between an element and a compound. Examples of compounds include water (H2O), carbon dioxide (CO2), and sodium chloride (NaCl). Compounds play a crucial role in various fields, including chemistry, biology, and medicine. They are essential for the existence and functioning of living organisms and have numerous practical applications in industries.

Explanation

A substance made from two or more different atoms is called a compound. In a compound, the atoms are chemically bonded together, creating a new substance with unique properties. Compounds can be formed through various chemical reactions, such as the combination of elements or the reaction between an element and a compound. Examples of compounds include water (H2O), carbon dioxide (CO2), and sodium chloride (NaCl). Compounds play a crucial role in various fields, including chemistry, biology, and medicine. They are essential for the existence and functioning of living organisms and have numerous practical applications in industries.

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