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प्रश्न
Fill in the blank
An excess of electrons produces a ________ charge.
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उत्तर
An excess of electrons produces a negative charge.
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संबंधित प्रश्न
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
WRITE SHORT ANSWER
Name three inert gases.
Fill in the blank
An ion with negative charge is called _______
What does an atom consist of ? Explain.
Name the particles which revolve around the nucleus.
Name three non-metals/radicals which have valency -1, -2, and -3.
Define: Covalent bond
How did Neils Bohr visualise the atom ?
Name the particle or particles you would expect to find in :
The nucleus of an atom
Define: An Atom:
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Draw the electron dot structure of this compound.
Name the gas that.
Turns moist starch iodide paper blue black.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
______ is a substance that is made up of three oxygen atoms chemically combined.
What are the 3 most abundant atoms on the earth?
The ______ are combination of atoms of various elements or the same element.
