Difficulty of Carbon to Form a Stable Ion
Trending Questions
How do you calculate the number of valence electrons in an atom?
What is the valency of Lead?
How many valence electrons does group 14 have ?
- Argon
- Fluorine
- Phosphorus
- Calcium
(b) chlorine atom and chloride ion, with respect to
(i) atomic structure
(ii) electrical state
The correct electron dot structure of a water molecule is
Choose the correct option:
Statement 1: The chemical symbol of carbon is C
Statement 2: The atomic number of carbon is 6
Statement 3: It is metallic in nature
Statement 4: It is a member of group 14 on the periodic table
Statement 1 and 2 are correct
Statement 3 and 4 are correct
Only statement 3 is incorrect.
All statements are true
(a) So
(b) Sd
(c) NA
(d) Na
Question 2
What are the rules to write the chemical formulas.
Which of the following matches the electronic configuration of noble element?
Name the following:
The electrons present in the outermost shell.
Complete the following :
The maximum number of electrons that can be present in the outermost shell of an atom is _______.
Four species A, B, C, D have the following subatomic particles :
Species | A | B | C | D |
Electron configuration | K L 2, 8 | K L 2, 8 | K L 2, ? | K L M 2, 8, 8 |
Protons | 8 | 12 | 8 | 18 |
Neutron | 8 | 12 | 6 | 22 |
Answer the following questions :
(i) Is A an atom or ion. Give its formula.
(ii) Identify B as an atom, anion, or cation.
(iii) Give a complete electron distribution diagram of C.
(iv) Can A and B form a compound? If so, give the formula.
(v) Write the isobar of D along with its name.
Why is it important to know the valencies to write a chemical formula?
Two elements that are gases at room temperature?
(a) So
(b) Sd
(c) NA
(d) Na
What is the maximum number of hydrogen atoms required to attain the octet configuration by carbon?
5
4
3
2
What is the nature of the C-Cl bond in CCl4 ?
If the outer most shell of an atom has four to seven electrons, it is generally ________.
CARBON
OXYGEN
SULPHUR
CHLORINE
- sharing of one electron
- transference of one or more electrons
- transference of one electron
- sharing of one or more electrons.
Question 2
What are the rules to write the chemical formulas.
The outermost orbit of an atom cannot have more than _________ electrons.