Table of Contents
Why is the melting point of chromium highest among 3d series?
(ii) Chromium has the highest melting point because it has a half-filled stable d-orbital and these unpaired electrons form strong intermetallic bonds which are difficult to break immediately. (iii) Scandium has a total of only 3 electrons in its outermost shell and thus can exist only in +3 oxidation state.
Which element has the highest melting point in 3d series and why?
Among first transition series (3d-series) chromium has highest melting point. Reason : In chromium one unpaired electron per d-orbital is particularly favourable for strong inter atomic interactions.
Does chromium have a high melting point?
3,465°F (1,907°C)
Chromium/Melting point
Why chromium has high melting point than calcium?
Calcium has a higher melting point as its greater density results in stronger metallic bonding. Chromium has a higher melting point as the electrons from the 3d orbital can delocalize and contribute to stronger metallic bonding.
Does chromium oxidize?
The most stable oxidation state of chromium in compounds is +3. Chromium displays amphoteric properties (the compound can act as a base or acid depending on conditions). It does not dissolve in water. Chromium (III) oxide is a rather inert substance, so it reacts with long heating (or smelting).
What element has a similar melting point to chromium?
The elements of the periodic table sorted by melting point
| Melting- point | Name chemical element | Atomic number |
|---|---|---|
| 1772 | Platinum | 78 |
| 1852 | Zirconium | 40 |
| 1857 | Chromium | 24 |
| 1890 | Vanadium | 23 |
What element has the same melting point as chromium?
Why chromium is a transition element?
Above 38 °C, it transforms into a paramagnetic state. Chromium is a member of the transition metals, in Group 6. Chromium has an electronic configuration of 4s13d5, owing to the lower energy of the high spin configuration.