On which atomic property proposed by Henry Moseley is the current periodic table of the elements based? (1 point)
* atomic weight
* atomic number
* nucleus size
• electric charge
atomic number
The current periodic table of the elements is based on the atomic number proposed by Henry Moseley.
The current periodic table of the elements is based on the atomic number, which was proposed by Henry Moseley. To understand this concept, let's break it down:
The atomic number of an element represents the number of protons in the nucleus of an atom. Each element has a unique atomic number, and it determines its position in the periodic table. For example, hydrogen has an atomic number of 1, oxygen has an atomic number of 8, and uranium has an atomic number of 92.
Henry Moseley's work in the early 20th century demonstrated that the atomic number is a fundamental property of an element, and it provides a more accurate way of organizing the elements compared to the previously used atomic weight.
To determine the atomic number of an element, you can consult various sources such as textbooks, online databases, or the periodic table itself. The atomic number is usually listed above or below the element's symbol in the periodic table.
In summary, the current periodic table is based on the atomic number proposed by Henry Moseley, which represents the number of protons in an atom's nucleus.