Ion with positive charge is known as
The positive electrical charges of protons are balanced by
To multiply multiple elements with a number we use
The ionic chemical formula of magnesium is
Nuclear batteries that produce small amount of current have
As there are same number of electrons and protons in an atom, atomic number can also be called
Unstable atoms break up into
The symbol of 'Carbon' is
Mass number tells us the number of
Second shell can hold up to
The electronic configuration of sodium as K, L, M is
In a drawing of atom, shells are indicated by
Diatomic gases such as nitrogen, oxygen and chlorine have
All three isotopes of carbon are combined with oxygen to form
Unstable atoms are radioactive so we call them
The atomic number of 'neon' is
The 'chlorine' ion has
Hydrogen is a diatomic gas and its chemical formula is
The second shell with the second energy level is known as
As the unstable atoms break up into smaller atoms,
Iron is represented by
The number of protons and electrons in an atom of uranium is
Electrons are mainly
Isotopes behave in different way in
In radioactive decay, some isotopes release a small amount of energy which can be used to
When shell L is completed, next electron moves to
The groups of elements and compounds are called
The number of neutrons in an atom effects the
The number of elements found in the nature is approximately
The nucleon number of an atom can
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