Practice Questions on Atomic Number
Q1. Describe the significance of the atomic number in determining the identity of an element. Explain how the atomic number is related to the number of protons and electrons in an atom.
Q2. Compare and contrast the concepts of atomic number and mass number. Provide examples to illustrate their differences and explain how they contribute to understanding the structure of atoms.
Q3. Discuss the role of isotopes in relation to the atomic number and mass number of an element. How do isotopes differ from one another, and how does the atomic number remain constant across isotopes of the same element?
Q4. Explain how the periodic table organizes elements based on their atomic numbers. Discuss the trends observed in the periodic table with respect to atomic number and explain their significance in understanding the properties of elements.
Q5. Investigate the concept of nuclear stability in relation to the ratio of protons to neutrons in the nucleus of an atom. Provide examples of isotopes and discuss how variations in the number of neutrons affect the stability and properties of an atom.
Atomic Number
Atomic number of an element refers to the number of protons present in its nucleus. It’s also called the nuclear charge number and is symbolized by Z. In a nonionized atom, the atomic number equals the number of orbiting electrons.
The atomic number defines the identity of an element. For instance, carbon, with six protons, remains a carbon atom irrespective of how many neutrons it has neutron. The atomic number serves as the unique identifier for each element.
Contact Us