
Explain why the radius increases in going from 3d to the 4d metals but the radius...
For the main group elements, atomic size increases down the
group. For the transition metals, how does the atomic size change
from the 4d series to 5d series? What is the factor that causes the
difference between these two types of elements?
(h) For the main group elements, atomic size increases down the group. For the transition metals, how does the atomic size change from the 4d series to 5d series? What is the factor that causes the difference between...
4d and 5d metals have a smaller atomic radius than one might expect. a) What phenomenon is responsible for this? Describe b) Of the pairs of elements given, indicate which would have the larger atomic radii i) Eu vs Pr ii) Sm vs Tm iii) Ce vs Dy
1.) What is the last orbital filled for the transition metals in period 5? A.) 4d B.) 3d C.) 5d D.) 5s E.) 5p 2.) In reactions, strontium tends to form the Sr2+ ion. Which electrons are lost upon ionization? A.) two of the 5d electrons B.) two of the 5p electrons C.) all of the 5s electrons D.) two of the 4d electrons E.) No answer text provided. F.) all of the 1s electrons 3.) Rank the compounds CO2,...
Explain why the effective nuclear charge increases across a row for the main group elements, but is nearly constant across a period in the transition metals. Explain why transition metals do not show the same strong trend in atomic radius as the main group elements (and even start to get larger across the row). Explain why the ionization energies of the transition metals are very similar to each other and do not follow the same trends as the main group...
Why is electron configuration for V [Ar]4s^2 3d^3 instead of [Ar]4s^2 4d^3 Is it not in the 4th row??? Thanks.
The Conductivity of metals decreases with increasing Temperature. However, The conductivity of semiconductors increases. Explain these two trends.
The reducing abilities of the first-row transition metals generally __________ going from left to right across the period. a. decrease b. increase c. stay the same d. none of these e. remain at 1.0 V the answer is A please explain it.
Explain why metals have high reflectivity, and why they appear a certain color.
Fe, Co, and Ni are ferromagnetic, whereas Ru, Ir, and Pt are diamagnetic. Explain why magnetic metals are found only among the 3d and 4f elements. Why are Sc and Ti, which are also 3d elements, diamagnetic?
“Ionic radius” is one of the more difficult trends as there is no distinct trend going across a period, only down a group. However, there are other smaller trends that are just as important. Compare the ions of Na, Mg, and Al. Fill in the following statement: “For _____________ ions in the same period, as the charge increases, the ionic radius _______________.” Explain this observation. Compare the ions of N, O, and F. Fill in the following statement: “For ______________...