Question

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ANSWER ALL OF THEM

NEED ANSWERS OF ALL THE QUESTION

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AND DON'T FORGET TO EXPLAIN THEM ALL. ​

Answer 1

1.)

ans -> (iv)

number of electrons in

Mg, O, F = 10

but Ca have,

18 electrons

2.)

ans -> a) increase two folds

because

relative mass if any substance =

Atomic mass of the substance/12

when it will 6 then it relative mass will twice,

3.)

ans -> (ii) Balmar series

4.)

and -> (ii) and (iv)

electron and proton

because at equal velocity; the particle with the least mass will have the largest wavelength.

5.)

ans -> (I) molarity

because molarity depend on volume so,

they change with temperature.

6.)

7.)

ans -> (iii) 2s, 3p

number of nodes = n - l

where,

n = principal quantum number

l = azimuthal quantum number

so,

number of nodes in

2s

here,

n = 2

l = 0

number of nodes = 2 - 0 = 2

3p

here,

n = 3

l = 1

number of nodes = 3 - 1 = 2

8.)

ans -> maximum on two opposite sides of the nucleus.

Answer 2

Explanation:

1.)

ans -> (iv)

number of electrons in

Mg, O, F = 10

but Ca have,

18 electrons

2.)

ans -> a) increase two folds

because

relative mass if any substance =

Atomic mass of the substance/12

when it will 6 then it relative mass will twice,

3.)

ans -> (ii) Balmar series

4.)

and -> (ii) and (iv)

electron and proton

because at equal velocity; the particle with the least mass will have the largest wavelength.

5.)

ans -> (I) molarity

because molarity depend on volume so,

they change with temperature.

6.)

7.)

ans -> (iii) 2s, 3p

number of nodes = n - l

where,

n = principal quantum number

l = azimuthal quantum number

so,

number of nodes in

2s

here,

n = 2

l = 0

number of nodes = 2 - 0 = 2

3p

here,

n = 3

l = 1

number of nodes = 3 - 1 = 2

8.)

ans -> maximum on two opposite sides of the nucleus.