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The atomic number of an element is equal to:
- a)The number of electrons in the nucleus
- b)The number of neutrons in the atom
- c)The number of protons in the nucleus
- d)The total number of nucleons
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The atomic number of an element is equal to:a)The number of electrons ...
Understanding Atomic Number
The atomic number is a fundamental property of an element that defines its identity in the periodic table.
Definition of Atomic Number
- The atomic number is defined as the number of protons in the nucleus of an atom.
- It is denoted by the symbol 'Z'.
Significance of Protons
- Protons are positively charged particles found in the nucleus.
- The number of protons determines the element's chemical properties and its place in the periodic table.
Relation to Electrons
- In a neutral atom, the number of electrons equals the number of protons.
- This balance of charges ensures the atom is electrically neutral.
Neutrons and Nucleons
- Neutrons are neutral particles in the nucleus and do not affect the atomic number.
- The total number of protons and neutrons in an atom is known as the mass number, which is different from the atomic number.
Why Option 'C' is Correct
- Option 'C', stating that the atomic number equals the number of protons in the nucleus, is accurate.
- This definition directly correlates with the identity of the element.
Summary
- The atomic number is fundamental for identifying elements.
- It directly influences an element's chemical behavior and its placement in the periodic table.
- Understanding the atomic number helps in grasping concepts in chemistry and atomic structure.
The atomic number is a fundamental property of an element that defines its identity in the periodic table.
Definition of Atomic Number
- The atomic number is defined as the number of protons in the nucleus of an atom.
- It is denoted by the symbol 'Z'.
Significance of Protons
- Protons are positively charged particles found in the nucleus.
- The number of protons determines the element's chemical properties and its place in the periodic table.
Relation to Electrons
- In a neutral atom, the number of electrons equals the number of protons.
- This balance of charges ensures the atom is electrically neutral.
Neutrons and Nucleons
- Neutrons are neutral particles in the nucleus and do not affect the atomic number.
- The total number of protons and neutrons in an atom is known as the mass number, which is different from the atomic number.
Why Option 'C' is Correct
- Option 'C', stating that the atomic number equals the number of protons in the nucleus, is accurate.
- This definition directly correlates with the identity of the element.
Summary
- The atomic number is fundamental for identifying elements.
- It directly influences an element's chemical behavior and its placement in the periodic table.
- Understanding the atomic number helps in grasping concepts in chemistry and atomic structure.
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Community Answer
The atomic number of an element is equal to:a)The number of electrons ...
The atomic number of an element is defined by: The number of protons in its nucleus. This number is crucial because: It determines the element's identity. It is equal to the number of electrons in a neutral atom.
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