Advertisements
Advertisements
प्रश्न
Write the names of the elements present in the:-
Sodium hydroxide
Advertisements
उत्तर
Sodium hydroxide : Sodium, oxygen, hydrogen.
APPEARS IN
संबंधित प्रश्न
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?
TRUE \ FALSE
Elements having a tendency to accept electrons are called metals
ANSWER IN DETAIL
How are isobars different from isotopes ?
Write the names of `"Na"_3"PO"_4` compounds :
Define: Mass number
Name two particles found inside the nucleus. What are they collectively called ?
Name the particles which revolve around the nucleus.
Give two examples for each of ionic and covalent bond.
Define: An Atom:
Write the full form of IUPAC.
Write the relation between nanometre and metre.
What is an atom ? How do atoms usually exist ?
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
The smallest particle of matter that can exist by itself is ______.
The smaller particles found in the atom is called ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Atoms of different elements having the same number of ______ are called isotones.
______ is a substance that is made up of three oxygen atoms chemically combined.
The ______ are combination of atoms of various elements or the same element.
