Advertisements
Advertisements
प्रश्न
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Advertisements
उत्तर
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of Neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
4 |
3 |
3 |
|
Cl |
17 |
37 |
20 |
17 |
17 |
|
Na |
11 |
23 |
12 |
11 |
11 |
|
Al |
13 |
27 |
14 |
13 |
13 |
|
S |
16 |
32 |
16 |
16 |
16 |
APPEARS IN
संबंधित प्रश्न
(i) How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
(ii) How many electrons are required for their octet structure?
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Sodium chloride is ______ compound while hydrogen chloride is ______ compound.
What type of bond is formed between two atoms, when the electronegative difference between them is zero?
Fill in the blank.
___________ single covalent bonds are formed between the carbon and chlorine atoms.
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
How many electrons are required by each atom mentioned in (a) to attain the nearest noble gas configuration?
Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:
- A solid non-metal of valency 3.
- A gas of valency 2.
- A metal of valency 1.
- A non-metal of valency 4.
An element M burns in oxygen to form an ionic compound MO. Write the formula of the compounds formed if this element is made to continue with chlorine and sulfur separately.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
How many atoms of each kind are present in the following molecule:
Chlorine
How many electrons are required or released by each atom in chlorine to attain the nearest noble gas configuration?
