Advertisements
Advertisements
प्रश्न
Fill in the blank
An _______ is electrically neutral.
Advertisements
उत्तर
An atom is electrically neutral
APPEARS IN
संबंधित प्रश्न
Define: Relative atomic mass
Give the charge and the mass of an electron, proton and neutron present in an atom ?
Name the particles which revolve around the nucleus.
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
Fill in the blank
A charged particle is called an _____
Fill in the blank
A deficiency of electrons produces a ________ charge.
Name the three subatomic particles present in an atom.
What are the building blocks of matter ?
What value has been given to the mass of this reference atom ?
The electronic configuration of an element Z is 2, 8, 8.
(a) What is the atomic number of the element?
(b) State whether element Z is a metal or a non-metal.
(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
The smaller particles found in the atom is called ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
In all atoms of an element
The number of atoms present in a molecule is called its ______.
Which of the following has maximum number of atoms?
Write any two observations which support the fact that atoms are divisible.
The ______ are combination of atoms of various elements or the same element.
