Advertisements
Advertisements
प्रश्न
Define the term ions or radicals.
उत्तर
An atom or a group of atoms when they either lose or gain electrons, get converted into ions or radicals.
APPEARS IN
संबंधित प्रश्न
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.
WRITE SHORT ANSWER
What is radioactivity?
Write the names of `"Na"_3"PO"_4` compounds :
Fill in the blank:
Atoms are _____
Define: Chemical bond
What does an atom consist of ? Explain.
State Dalton’s atomic theory.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Find the mass of 2 moles of nitrogen atoms.
In what respects do the three isotopes of hydrogen differ? Give their structures.
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
Define the following term with an example.
Compound
______ is the smallest particle of an element.
An element is composed of ______ atoms.
Atoms of different elements having the same number of ______ are called isotones.
