Question

Class 10th sciences 1 L-2​

Answer 1

Answer:

2. false 3. false 1. true 4. true

Explanation:

B. 1 ans . according to modern periodic law ''the physical and chemical properties of the elements are a periodic function of their atomic number ".

2. ans

3.ans ELECTRONIC COFIGURATION in GROUP

element in the same group and have same number of of electronic in their outermost shell leading to similar valenc. shell electronic configuration . thus, we observe a similar ternd in properteis and chemistry of the elements in the same group .

this is your ans .

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