Advertisements
Advertisements
Question
Define the following term with an example.
Compound
Advertisements
Solution
Compound: A compound is a pure substance that is formed when the atoms of two or more elements combine chemically in definite proportions.
Ex: H20, NaCl.
APPEARS IN
RELATED QUESTIONS
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
Define:- Atom
Write the names of the elements present in the :-
Sulphuric acid
Fill in the blank
An ion with positive charge is called ______
Define: Relative atomic mass
Give the charge and the mass of an electron, proton and neutron present in an atom ?
Name two particles found inside the nucleus. What are they collectively called ?
What are orbits or shells ?
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
How is the size of an atom indicated ?
What is an atom ? How do atoms usually exist ?
Which of the following statement is correct about the atom of an element ?
Electron, proton, neutron are the types of ______ in an atom.
What is the contribution of the following in atomic structure?
Maharshi Kanada
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.
Define the following term with an example.
Non-metal
Atoms of different elements having the same number of ______ are called isotones.
Does the solubility of a substance change with temperature? Explain with the help of an example.
Lead is also known as plumbum.
Atoms have a radius of the order ______.
