Chemistry
Grade-9
Easy

Question

As you move left to right on a row or period, what happens?

  1. Atomic number increases by 1
  2. Electrons decrease
  3. Number of shells decreases
  4. Nothing

hintHint:

Atomic number increases.

The correct answer is: Atomic number increases by 1


    • The horizontal rows in a periodic table is called periods.
    • The vertical rows in a periodic table is called columns.
    • As we move from left to write in a periodic table atomic number increases by 1.

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