What are the properties of Group 16?
Preparation and General Properties of the Group 16 Elements
| Property | Oxygen | Polonium |
|---|---|---|
| atomic mass (amu) | 16.00 | 209 |
| valence electron configuration* | 2s 22p 4 | 6s 26p 4 |
| melting point/boiling point (°C) | −219/−183 | 254/962 |
| density (g/cm 3) at 25°C | 1.31 | 9.20 |
Why is Group 17 called Chalcogens?
question_answer Answers(2) Group 17 elements are called halogens because halogen is a Greek word which means ‘salt producing’. Halogens include fluorine, chlorine, bromine, iodine and astatine. They all are non-metals. They react with metals to form compounds called salts.
What is the only metalloid in Group 17?
Boron
What is the charge of Group 16?
-2
Which element of Group 15 does not show Allotropy?
bismuth
Which element has most allotropes?
Carbon has several allotropes, or different forms in which it exists. Interestingly, carbon allotropes span a wide range of physical properties: diamond is the hardest naturally occurring substance, and graphite is one of the softest known substances.
What are the common oxidation state of Group 15 elements?
The elements of group 15 generally exhibit -3, +3 and +5 oxidation states. The tendency to exhibit -3 oxidation state decreases as we move down the group due to an increase in the size of the atom and the metallic character. Bismuth hardly forms any compound in oxidation state -3.
Why does boiling point increase down Group 15?
Boiling point (amount of energy required to break bonds to change a liquid phase substance to a gas) increases down the group. Metallic character increases down the group….Periodic Trends.
| Element/Symbol | Phosphorus (P) |
|---|---|
| Mass | 30.97 |
| Electron Configuration | [Ne]3s2 3p3 |
| Covalent Radius (pm) | 110 |
| Electronegativity | 2.1 |
Which element in group 15 has lowest boiling point?
phosphine
Which element of Group 15 is found in abundance in nature?
Nitrogen