Answer:
It is false
Explanation:
Barium does not gain electrons to make its valences shell full. In truth, Barium loses electrons to attain a complete octet configuration of its shell.
This is because, barium is electropositive and not electronegative.
- As with most metals, barium will prefer to lose two electrons when forming bonds.
- The loss of two electrons makes it isoelectronic with the corresponding noble gas.
Answer:
it's more flexible that way
Explanation:
there is more oxygen to let it catch fire
One Hundred and twenty-five
<em>Diamond and graphite are allotropes of carbon and have various differences in their physical properties.</em>
Explanation:
<u>Diamond:</u>
- It is crystalline in nature
- Each Each C is
hybridized and forms 4 covalent binds with neighboring C atoms - The geometry is tetrahedral
- C-C bond length is 154 pm
- It has rigid covalent boning which is difficult to break.
- It acts as an electric insulator
<u>Graphite:</u>
-
It has layered structure
- Each C atom is sp2 hybridized and forms 3 sigma bonds with 3 other C atoms. Fourth electron forms pi bond.
-
The geometry is planar
- C-C bond length is 141.5 pm
- It is soft. Its layers can be separated easily
- It is good conductor of electricity.
This is the comparison of the physical properties of two forms of carbon: diamond and graphite
The MC1R gene provides instructions for making a protein called the melanocortin 1 receptor. This receptor plays an important role in normal pigmentation. The receptor is primarily located on the surface of melanocytes, which are specialized cells that produce a pigment called melanin.
