Number 1 is a and number 2 is none
Answer:
Explanation:
all the questions on the paper?
Answer:
Francium
Step-by-step explanation:
Atomic radius increases from <em>right to left</em> in a Period and from <em>top to bottom</em> of a Group in the Periodic Table.
Thus, the atom with the largest atomic radius is in the <em>lower left corner</em>.
Francium, with an atomic radius of 348 pm, has the largest atomic radius of any element in the Periodic Table.
The density of metal = 4.5 g/ml, and the metal = Titanium
<h3>Further explanation </h3>
Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
Density formula:

ρ = density
m = mass
v = volume
mass of metal=27 g
volume = 6 ml
The density :

The metal with a density of 4.5 g/ml is Titanium
hybridization is defined as mixing up of the atomic orbital with nearly same energies according to linear combination of atomic orbitals. the orbitals formed are equal in energy and are called hybrid orbitals .