What are the hydrides of group 16?
What are the hydrides of group 16?
The Group 16 hydrides are:
- O: water, H2O; hydrogen peroxide, H2O2; trioxidane H2O.
- S: hydrogen sulfide, H2S; hydrogen disulfide, H2S.
- Se: hydrogen selenide, H2Se.
- Te: hydrogen telluride, H2Te.
- Po: hydrogen polonide, H2Po.
Is group 16 elements are called halogens?
Group 16 elements are called chalcogens. The word chalcogen means ore forming. The name is actually derived from a Greek word. These electronegative elements are strongly associated with metal-bearing minerals, where they have formed water-insoluble compounds with the metals in the ores.
Why does the halide stability decrease down the group?
As we move from top to bottom down the group , size of surrounding atoms i.e. halogens increases along with decrease in electronegativity . Hence due to large size H in hallides can be easily removed as it is not strongly bonded .
Are group 16 elements metals?
Nature of the Group 16 Elements: Oxygen and Sulfur are non-metals, Selenium and Tellurium are metalloids and Polonium is a metal under typical conditions. Polonium is a radioactive element.
Which hydride of group 16 has highest boiling point?
We know, down the group of a periodic table, molecular mass and surface area increases, and for group 16, it is Te>Se>S. So, their hydrides boiling points are H2Te>H2Se>H2S.
Which group 16 element does not form halides?
Reason (R) : All elements of Group 16 except oxygen form dischlorides and dibromides.
Which is the most stable halide of Group 16?
The stability of halides decreases in the order F- > Cl- > Br- > I-. This is because E-X bond length increases with increase in size. Among hexa halides, fluorides are the most stable because of steric reasons. Dihalides are sp3 hybridised, are tetrahedral in shape.
Which halide ion is more stable?
Stability of carbon tetrahalides decreases with increase in the size of halogen atom. So, CF4 is the most stable halide among the given options.
What is group 16 called?
oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).
Which of the following hydrides of group 16 elements has the highest boiling point?
H_2O`
Solution : In hydrides of group 16 , `H_2O` has highest boiling point .
Which hydride of group 16 has lowest boiling point?
Hence H2S has lowest boiling point here.
Which group 16 hydrides has lowest boiling point?
H2S
Hence H2S has lowest boiling point here.
Which one of the following has the lowest boiling point group 16?
Solution : Among group 16 hydrides, `H_2O` has the highest boiling point. It is due to H-bonding which exist even in liquid state. Due to absence of H-bonding and lower molecular mass `H_2S` has least boiling point.
What are group 16 elements called?
chalcogen
oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).
How do group 16 react with halogens?
Acidic character of the hydrides of group 16 elements increases on moving down the group as the bond enthalpy of H-E bond decreases on moving down the group. All elements of the oxygen family react with halogens. The stability of the halides of group 16 decreases in the order F- > Cl- > Br- > I-.
What are halides in chemistry?
Halides are chemical compounds that contain halogens. Halides are present in nature with some — namely salts and acids — being essential to human life. Halides can be found in minerals, animals, and plants. The best-known halide is NaCl: table salt.
Is chlorine a halogen?
Group 7A (or VIIA) of the periodic table are the halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The name “halogen” means “salt former”, derived from the Greek words halo- (“salt”) and -gen (“formation”).