Which of the following elements has maximum tendency to form complex compounds?

Cast iron has the maximum percentage of carbon.

Why are boron and Aluminium in the same group?

They are characterized as a group by having three electrons in the outermost parts of their atomic structure. Boron, the lightest of these elements, is a metalloid. Aluminum, gallium, indium, and thallium are silvery white metals. None of these elements was known in a pure state before modern chemistry isolated them.

Why does beryllium form complex compounds?

Beryllium can have 4 vacant orbitals in Be+2 state. So it can form complexes with coordination number 4. To form complex compounds, vacant orbitals are required but not necessarily d orbitals. Few elements like Mg, can show complex compounds because of vacant orbitals in valence shell.

Can be and Al form complex?

Both Be and Al can form complexes such as BeF^-24 and AIF6^3 – respectively, BeF6^-3 is not formed.

Why do transition elements have tendency to form complexes?

It forms complexes due to the presence of vacant d orbitals. These metals and their ions easily coordinate with a number of negative ions or neutral molecules having lone pairs of electrons to form a complex. Hence transition element form complexes.

Which of the following elements doesn’t form complex compounds?

Nitrogen does not form complexes because of the absence of d-orbitals.

Why is boron different from other groups of three groups?

Boron differs from the other group members in its hardness, refractivity and reluctance to participate in metallic bonding. An example of a trend in reactivity is boron’s tendency to form reactive compounds with hydrogen.

Why does aluminium have a low density than boron?

Answer: However, boron and aluminium have comparatively low values. This is due to their lower atomic masses as compared to gallium, indium, and thallium.

Why beryllium is differs from the members of its group?

1) Beryllium is harder than other members of its group. 2) Beryllium has higher melting and boiling point than other members of its group. 3) Beryllium does not react with water even at high temperature while other metals do. 4) Beryllium forms covalent compounds whereas other members form ionic compounds.

What type of ion is boron?

In its compounds boron shows an oxidation state of +3. The first three ionization energies of boron, however, are much too high to allow formation of compounds containing the B3+ ion; thus, in all its compounds boron is covalently bonded.

Why does Aluminium form complex ions?

Because the aluminium is forming 6 bonds, the co-ordination number of the aluminium is said to be 6. The co-ordination number of a complex ion counts the number of co-ordinate bonds being formed by the metal ion at its centre. Some ligands can form more than one co-ordinate bond with the metal ion.

How complex compounds are formed?

A complex ion is a species formed between a central metal ion and one or more surrounding ligands, molecules or ions that contain at least one lone pair of electrons. Small, highly charged metal ions have the greatest tendency to act as Lewis acids and form complex ions.

What is the hybridization of boron in complex compounds?

Boron can form many complexes like [BF 4] –. It has an sp 3 hybridized orbitals and tetrahedral geometry. Other elements also form complex compounds like Li [AlH 4 ], [GaCl 6] 3-. The atomic radii of group 13 elements are lesser than their corresponding group 2 elements.

Why does boron prefer to form covalent compounds?

The hack this influencer used to break the private jet industry. She was able to accomplish all of this with just $250 to start! Due to its small size and high charge density, boron prefers to form covalent compounds rather than ionic compounds.

How does boron behave differently from other elements in Group 13?

Boron behaves differently from the rest of the elements present in group 13 because of the following reasons. All of the elements of group 13 react at high temperature forming trioxides, M 2 O 3. Tl besides forming Tl 2 O 3 also forms Tl 2 O.

Why does boron form a sextet rather than an octet?

Due to its small size and high charge density, boron prefers to form covalent compounds rather than ionic compounds. It has 3 valence electrons which it prefers to share rather than donate as B3+ ions is very small and unstable, hence it forms a sextet rather than octet. Views · View 2 Upvoters.