Those elements in which differetiating electron enters d-orbital are called d-block elements. They are also called transition metals because they are less electropositive than s-block but more electropositive than p-block elements.
Definition : d-block elements are defined as the elements in which the differentiating electron enters d-orbital of the penultimate shell i.e. (n-1) d-orbital where 'n' is the last shell. The general electronic configuration can be represented as, (n-1
Why are transition metal compounds often used in paint pigments? Why are metals good conductors of heat and electricity? Why are metals and alloys used in so many materials? Why is the stock system used for transition metal compounds? Why are metals opaque? Why is zinc not a transition metal?
What kinds of electrons characterize transition metals - and why are these relevant to the properties of transition metals? Transition Metals the elements having electrons in its d sub-shell or the elements having partially filled d sub-shell are kno...
Why are they called “eccentrics”?Mostly because their painting style is deemed expressive and individualist.
A fiduciary’s responsibilities and duties are ethical and legal. When a party knowingly accepts a fiduciary duty on behalf of another, they are required to act in the best interest of the principal (i.e., the client or party whose assets they are managing). This is what is known as a...
Did you ever think about why hamburgers are called hamburgers, especially when they are not made with ham? About a hundred years ago, some men went to America from Europe. They came from a big city in Germany called Hamburg. They did not speak good English, but they ate good food. ...
题目Smartphones are getting boring.The new models either are a bit faster or have better cameras,but they are not different from the ones already in our pockets.This is why scientists are working for something new.At the moment,the next invention might be smart glasses. Jus...
the scientist makes a hypothesis.It could be"Bird fly south for the winter because they are cold."Or it could be"Water will turn into ice when the temperature gets low enough"It's a so called educated(有根据的)guess.Now,the scientist has a hypothesis,so it must be tested.Scientists do...
题目Over the past several years,e-cigarettes have entered the marketplace and become very popular.Many smokers turn to them,believing that they are a safe alternative to smoking tobacco cigarettes,but are they?Unfortunately,they're not:E-cigarettes are just another way of putting ni...