Question

The elements on the Periodic Table that we use today are arranged by _______________
Question 4 options:

A. Atomic Mass

B. Atomic Number

C. Neutrons

D. Color

Answer 1

Answer:

the correct answer is atomic number

Explanation:

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Answer 2

The elements on the Periodic Table that we use today are arranged by B. Atomic Number.

Explanation:

• The modern periodic table of chemical elements organizes every chemical element in rows and columns according to increasing atomic number.
• Rows are called periods and columns are called groups.
• Atomic number is the number of protons present in an atom. Number of protons is equal to the number of electrons.
• Every element has different unique atomic number.
• Atomic mass is the sum of number of neutrons and number of protons in the nucleus of an atom. It can differ for same element, so this is not used in periodic table order.
• Neutrons are subatomic particles present in the nucleus of an atom.
• Colour of same element can vary with its change of state.