SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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name of elements
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atomic mass of elements
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atomic number of elements
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size of an atom of an element
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Detailed explanation-1: -In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom.
Detailed explanation-2: -How is the Periodic Table arranged? The periodic table is arranged by atomic weight and valence electrons. These variables allowed Mendeleev to place each element in a certain row (called a period) and column (called a group). The table comprises seven rows and 18 columns.
Detailed explanation-3: -Ask most chemists who discovered the periodic table and you will almost certainly get the answer Dmitri Mendeleev.
Detailed explanation-4: -In the modern periodic table, the elements are arranged on the basis of their increasing atomic number.