Question

What are the merits of mendeleevs
periodic table

Answer 1

ANSWER:

Mᴇʀɪᴛs ᴏғ Mᴇɴᴅᴇʟᴇᴇᴠ Pᴇʀɪᴏᴅɪᴄ Tᴀʙʟᴇ. Sᴏᴍᴇ ɢᴀᴘs ᴡᴇʀᴇ ʟᴇғᴛ ғᴏʀ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ʏᴇᴛ ᴛᴏ ʙᴇ ᴅɪsᴄᴏᴠᴇʀᴇᴅ. Tʜᴜs, ɪғ ᴀ ᴄᴇʀᴛᴀɪɴ ɴᴇᴡ ᴇʟᴇᴍᴇɴᴛ ɪs ᴅɪsᴄᴏᴠᴇʀᴇᴅ, ɪᴛ ᴄᴀɴ ʙᴇ ᴘʟᴀᴄᴇᴅ ɪɴ ᴀ ɴᴇᴡ ɢʀᴏᴜᴘ ᴡɪᴛʜᴏᴜᴛ ᴅɪsᴛᴜʀʙɪɴɢ ᴀɴʏ ᴇxɪsᴛɪɴɢ ɢʀᴏᴜᴘ.

Answer 2

Mendeleev put gaps for undiscovered elements,

He predicted properties of undiscovered elements,

Incorrect atomic mass corrected,

He grouped elements correctly