Question

Junod and in a soup? How do you explain the
What do you understand selectronic species? Name a species that will be
or tror with cart the following atoms or lons,
2
Consider the closing species
No, F. Na Me and Al
(a) Whial is common in them?
(b) Arrange them in the order of increasing ionic radi.
13 Explain why cation are smaller and anions larger in radii than their parent atoms?
What is the significance of the terms 'isolated gaseous atom' and 'ground state'
while defining the lonization enthalpy and electron gain enthalpy?
Hint : Requirement for comparison purposes.
15 Energy of an electron in the ground state of the hydrogen atom is
2.18 10 J. Calculate the ionization enthalpy of atomic hydrogen in terms of
s mol,
Hint: Apply the idea of mole concept to derive the answer.
16 Among the second period elements the actual ionization enthalpies are in the
order Li <B<Be CCONF < Ne.
Explain why
Be has higher than B
(1) O has lower H than N and F?
.17 How would you explain the fact that the first ionization enthalpy of sodium is
lower than that of magnesium but its second ionization enthalpy is higher than
that of magnesium?
118 What are the various factors, due to which the ionization enthalpy of the main​

Answer 1

Answer:

When we see around we can find a large variety of living organisms around us. This variety includes small plants, birds, insects and several other animals. This refers to biodiversity for the number and types of organisms present on the earth. So to identify, regroup and recognize various organisms, a systematic study is required. Let’s also study how scientific names are being provided to them.

Answer 2

Explanation:

Human blood contains red blood cells which are the most abundant human blood cells. RBCs are devoid of any cell organelles and have a red coloured iron-containing complex protein called haemoglobin which is responsible for the red colour of human blood.