Advertisements
Advertisements
Question
Define: Chemical bond
Solution
Chemical bond— A chemical bond is the binding force between two or more atoms of a molecule.
APPEARS IN
RELATED QUESTIONS
Why is it not possible to see an atom with naked eyes?
If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.
The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes `""_8^16X" and """_8^18X` in the sample?
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Write the names of the elements present in the:-
Sodium hydroxide
What does an atom consist of ? Explain.
Name the particles which revolve around the nucleus.
What are orbits or shells ?
Give two examples for each of ionic and covalent bond.
Why is it not possible to see an atom even with the most powerful microscope ?
State two observations which show that atom is not indivisible.
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
What is the contribution of the following in atomic structure?
Maharshi Kanada
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
The basic unit of matter is ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Project.
To have an idea of what atoms are, students can be asked to construct atoms using pipe cleaners (thin metal wires-electron shells), pompoms (balls-different colours for protons and neutrons) and beads (electrons). Students will love and enjoy putting them together and they look great hanging from the ceiling in the classroom.
Give the salient features of “Modern atomic theory”.
The graphite refill used is pencil is made of element called ______.
Lead is also known as plumbum.
