Question

state Mendeleev periodic law ​

Answer 1

Answer:

ᴀɴsᴡᴇʀ

Mᴇɴᴅᴇʟᴇᴇᴠ's ᴘᴇʀɪᴏᴅɪᴄ ʟᴀᴡ sᴛᴀᴛᴇs ᴛʜᴀᴛ ᴛʜᴇ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ ᴇʟᴇᴍᴇɴᴛs ᴀʀᴇ ᴛʜᴇ ᴘᴇʀɪᴏᴅɪᴄ ғᴜɴᴄᴛɪᴏɴ ᴏғ ᴛʜᴇɪʀ ᴀᴛᴏᴍɪᴄ ᴍᴀssᴇs.

Answer 2

Answer:

1. Medeleff periodic table is also know as short form of the periodic table
2. It has eight horizontal rows is called groups represented by Roman numeral 1to8 and A and B as the traditional notation
3. It has seven vertical columns called periods are represented by Arabic numeral 1to7
4. In the medeleff periodic table there are 63 elements are present starting from 1A alkali metals
5. In the medeleff periodic table there are some missing elements and thought some of the elements will discover later so he left empty blanks and name as eka the Sanskrit word means numeral one eka boron , eka aluminium and eka silicon as scandium , gallium and germanium
6. He also corrected the atomic weight of Be , and Iodine and Tellurium

Due to his contribution the 101 element named as Mendevelium

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