Exams

British businessman Mark Tucker, currently group chief executive and president of insurance group AIA, will take over from Douglas Flint as the new Chairman of HSBC in October.

Footsteps. 

Yes, as you walk forward, you will leave the footstep behind you.

For neutral atoms, the periodic trends in atomic size can be described like this

Atomic size decreases when going from left to right across a period,
Atomic size increases when going from top to bottom down a group.

Let's use these trends to try and figure out which atom would have the largest radius.

If you look at elements that are located in the same group, potassium will have a larger atomic radius when compared with sodium. Likewise, bromine will have a larger atomic radius when compared with chlorine.

Now focus on potassium and bromine. Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.

The South Asian Association for Regional Cooperation is the regional intergovernmental organization and geopolitical union of nations in South Asia. Its member states include Afghanistan, Bangladesh, Bhutan, India, Nepal, the Maldives, Pakistan and Sri Lanka. The year 1995 is observed as poverty eradication year by SAARC.

The Wind is what has no voice but cries, no wings but flutters, toothless but bites, mouthless but mutters.