Question

one difference in periods and groups​

Answer 1

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ᴘᴇʀɪᴏᴅs

• ᴘᴇʀɪᴏᴅs ᴀʀᴇ ᴀʀʀᴀɴɢᴇᴅ ɪɴ ᴀ ʜᴏʀɪᴢᴏɴᴛᴀʟ ᴍᴀɴɴᴇʀ.
• ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ɪɴ ᴀ ᴘᴇʀɪᴏᴅ ᴅᴏ ɴᴏᴛ ʜᴀᴠᴇ sɪᴍɪʟᴀʀ ᴘʀᴏᴘᴇʀᴛɪᴇs.

ɢʀᴏᴜᴘs

• ɢʀᴏᴜᴘs ᴀʀᴇ ᴠᴇʀᴛɪᴄᴀʟʟʏ ᴀʀʀᴀɴɢᴇᴅ ᴏɴ ᴛʜᴇ ᴘᴇʀɪᴏᴅɪᴄ ᴛᴀʙʟᴇ.
• ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ɪɴ ᴇᴀᴄʜ ɢʀᴏᴜᴘ ʜᴀᴠᴇ sᴏᴍᴇ sɪᴍɪʟᴀʀ ᴘʀᴏᴘᴇʀᴛɪᴇs, ʙᴜᴛ ɴᴏᴛ ᴇɴᴛɪʀᴇʟʏ ɪᴅᴇɴᴛɪᴄᴀʟ ᴘʀᴏᴘᴇʀᴛɪᴇs.

Answer 2

Answer:

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.

Explanation:

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