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प्रश्न
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
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उत्तर
X
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संबंधित प्रश्न
MATCH THE COLUMNAS
| 1. Jpham Dalton | a. Neutrons |
| 2. Atom | b. Model of the atom |
| 3. Chadwick | c.The atomic theory of matter |
| 4. Rutherfrod | d. Positively charged |
| 5. Protons | e. Electricity neutral |
| 6. Nuclear fusion | f. Generator of electricity |
| 7.Gamma -rays | g. High penetrating power |
| h.Energy in sun |
TRUE \ FALSE
Elements having a tendency to accept electrons are called metals
WRITE SHORT ANSWER
Name three inert gases.
Define:- Radicals
Write the names of the elements present in the:-
Acetic acid
Name two particles found inside the nucleus. What are they collectively called ?
Name the particles which revolve around the nucleus.
Write the full form of IUPAC.
Name the unit in which the radius of an atom is usually expressed.
What is an atom ? How do atoms usually exist ?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
Name the sub-atomic particles.
Define the following term with an example.
Non-metal
Define the following term with an example.
Metalloid
Which of the following statements made by Dalton has not undergone any change?
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
Write any two observations which support the fact that atoms are divisible.
The most abundant type of atom is the universe is ______.
Atoms have a radius of the order ______.
