Science, asked by madasnaresh6, 7 days ago

vertical columns are called groups. there are 18 groups. the chemical properties of the elements in the same group show similarity and gradation 3. horizontal rows are called periods. there are in all 7 periodic. the properties of elements change slowly from one end to the other in a period​

Answers

Answered by sufiyanadhikari1234
1

Answer:

achu produce in da chemical

Answered by jawalepornima
0

Answer:

x-ray

vartical collom

Explanation:

groups. the chemical properties of the elements in the same group show similarity and gradation 3. horizontal rows are called periods. there are in all 7 periodic. the properties of elements change slowly from one end to the other in a period

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