how many groups are in their periodic table_______
how many horizontal lines are there in periodic table
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Answered by
6
Answer:
ᴛʜᴇʀᴇ ᴀʀᴇ 18 ɢʀᴩꜱ ɪɴ ᴩᴇʀɪᴏᴅɪᴄ ᴛᴀʙʟᴇ
ꜱᴇᴠᴇɴ ʜᴏʀɪᴢᴏɴᴛᴀʟ ʟɪɴᴇꜱ ᴀʀᴇ ᴛʜᴇʀᴇ
Answered by
1
Answer:
there are 18 groups and 7 periods in periodic table
Explanation:
horizontal lines are called periods and they are 7 in number
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