Advertisements
Advertisements
प्रश्न
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^39_19K}\]
उत्तर
Geometric atomic structure of:
\[\ce{^39_19K}\]
Number of protons P = 19 = e
A = P + n
39 = 19 + n
∴ n = 39 − 19 = 20
e = 19 (2, 8, 8, 1)
Electronic configuration
2, 8, 8, 1 electronic arrangement
APPEARS IN
संबंधित प्रश्न
Give electron dot diagram of the following:
methane
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
Define the term:
orbit
Five atoms are labeled A to E
|
Atoms |
Mass No |
Atomic No. |
|
A |
40 |
20 |
|
B |
19 |
9 |
|
C |
7 |
3 |
|
D |
16 |
8 |
|
E |
14 |
7 |
(a) Which one of these atoms:
(i) contains 7 protons
(ii) has electronic configuration 2,7
(b) Write down the formula in the compound formed between C and D
(c) Predict : (i) metals (ii) non-metals
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
Draw orbit structure diagram of sodium chloride (NaCl).
State the type of bond between Y and Z and give its molecular formula.
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
Write the basic concept of Kossel – Lewis theory.
Complete the following table:
| a. | Dativebond | ______ |
| b. | CaH2 → Ca+H2 | ______ |
| c. | ______ | Reduction |
| d. | ______ | Redox reaction |
