The modern periodic table has elements arranged in increasing atomic numbers. It has ________vertical columns and _____horizontal rows.

Keep practicing — related questions

• Which of the following statements is/are correct about the modern periodic table?
• The horizontal rows of elements in a modern periodic table are called _______ and the vertical rows of elem...
• The modern periodic table has _____ groups.
• The numbers of groups and periods present in the modern periodic table are ____ and ____, respectively.
• Modern periodic table has ________ periods.
• Group 1 of the modern periodic table consists of _______ metal(s) and _______ non metal(s).
• The element of atomic number 22 belongs to which of the following periods of the periodic table?
• The element of atomic number 12 belongs to which of the following groups of the periodic table?