how many groups are in the modern periodic table?\n12\n18\n22\n24

how many groups are in the modern periodic table?\n12\n18\n22\n24
Answer
Brief Explanations:
The modern periodic table has 18 vertical columns called groups.
Answer:
B. 18

how many groups are in the modern periodic table?\n12\n18\n22\n24
The modern periodic table has 18 vertical columns called groups.
B. 18