Acche Marks
\(\begin{array}{l}\mathrm{S}=\mathrm{r} \theta\end{array}\)
The equation represents the relationship between arc length and angular displacement in circular motion, where s is the arc length, r is the radius, ø is the angle measure in radians.
An element has its electron configuration as 2,8,2. Now answer the following questions.
1. What is the atomic number of this element? Answer: 2. What is the group of this element? Answer: 3. To which period does this element belong? Answer: 4. With which of the following elements would this element resemble? (Atomic numbers are given in the brackets) N (7), Be (4) , Ar (18), Cl (17) … Read more