Consider the elements: He, Ne, and Ar. Can you come up with a reason why they are in the same group in the periodic table? Explain the trend in melting point of metals across period 3 elements. Why was Mendeleev's periodic table rejected?
On moving down the group 13 density View Solution What is the trend in the atomic size in a group, does it increase or decrease? View Solution The atomic radius increases as we move down a group because View Solution Describe the trend of atomic size along a period ...
Most elements on the periodic table are what? What terms refer to a vertical column in the periodic table of elements? What trend does the reactivity of nonmetals show in a periodic table? What happens to the properties of elements acro...
Explain how the Lewis structure of ozone is important. What can chemists can do to prevent ozone depletion in the atmosphere?Ozone Layer:One cannot imagine the protection of human beings from harmful solar radiations in the absence of ozone laye...