Answer:
Explanation:The main difference between ionic covalent and metallic bonds is their formation; ionic bonds form when one atom provides electrons to another atom whereas covalent bonds form when two atom shares their valence electrons and metallic bonds form when a variable number of atoms share a variable number of electrons in a metal lattice.
Answer:
A
Explanation:
i think A is correct answer because
A has 8 Electrons& Protons
and it's electronic configuration ns² np⁶.
which allow it to gain 2 electrons to reach stability.
Answer: None of the above statements is false.
Explanation:
In a solid substance, particles are closely held together due to which a solid substance has definite shape and volume. Therefore, solids are also incompressible in nature.
In liquids, the molecules are slightly away from each other due to which they can slide past each other. Hence, liquids do not have a fixed shape but they have a definite volume. Liquids are also incompressible in nature.
In gases, the particles are held by Vander waal forces due to which they move rapidly from one place to another. Hence, gases are highly compressible in nature.
Thus, we can conclude that none of the given statements are false.
Answer:
70000 cm in 7km
Explanation:
There are 1000 m and 100 cm in 1 m in 1 km, so to find how many cm are in 7 km you need to do 10000 x 7. You get 70000
Have a nice day!
Answer:
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion.
Explanation:
The formula of phosphate ion is PO₄³⁻
The formula shows a phosphorus atom surrounded by 4 oxygen atoms.
For this bond to be established, phosphorus would be covalenty bonded to the oxygen atoms.
A covalent bond arises when two atoms with similar zero or very small electronegativity difference(≤ 0.5 ) combines. The electronegativity difference between phosphorus and oxygen is less than 0.5 and the two atom would bond by sharing of their electrons.
The net charge on the resulting radical is a -3 charge which it uses to form other bond types with other atoms. The charge implies an excess of 3 electrons on the radical formed.
