What is boron group chemistry?
Group 13 is called the boron group and it consists of boron (B), aluminium (Al), gallium (Ga), indium (In) and thallium (Tl). It is important to note that boron is a metalloid whereas aluminium is a metal but shows many chemical similarities to boron.
What element is in Group 13 and Period 2 of the periodic table?
The boron family contains the semi-metal boron (B) and metals aluminum (Al), gallium (Ga), indium (In), and thallium (Tl). Boron is the fifth element of the periodic table (Z=5), located in Group 13.
Why is boron in group 3 of the periodic table?
Boron forms mostly covalent bonds, while the other elements in Group 3A form mostly ionic bonds. The Group 3A metals have three valence electrons in their highest-energy orbitals (ns2p1). They have higher ionization energies than the Group 1A and 2A elements, and are ionized to form a 3+ charges.
What are the chemical properties of Group 13?
Preparation and General Properties of the Group 13 Elements
| Property | Boron | Thallium |
|---|---|---|
| melting point/boiling point (°C) | 2075/4000 | 304/1473 |
| density (g/cm 3) at 25°C | 2.34 | 11.8 |
| atomic radius (pm) | 87 | 156 |
| first ionization energy (kJ/mol) | 801 | 589 |
Why is it called boron group?
Group 13 of the periodic table is also called the boron group because boron (B) is the first element at the top of the group (see Figure below). Boron is also the only metalloid in this group. The other four elements in the group—aluminum (Al), gallium (Ga), indium (In), and thallium (Tl)—are all metals.
What is the period of boron?
2
Fact box
| Group | 13 | 2077°C, 3771°F, 2350 K |
|---|---|---|
| Period | 2 | 4000°C, 7232°F, 4273 K |
| Block | p | 2.34 |
| Atomic number | 5 | 10.81 |
| State at 20°C | Solid | 11B |
Who discovered boron?
Humphry Davy
Joseph Louis Gay-LussacLouis Jacques Thénard
Boron/Discoverers
Is boron Group 3 or 13?
Boron group element, any of the six chemical elements constituting Group 13 (IIIa) of the periodic table. The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and nihonium (Nh).
What is the chemical properties of boron?
Chemical properties of boron – Health effects of boron – Environmental effects of boron
| Atomic number | 5 |
|---|---|
| Electronegativity according to Pauling | 2.0 |
| Density | 2.3 g.cm-3 at 20°C |
| Melting point | 2076 °C |
| Boiling point | 3927 °C |
What are the chemical properties of boron family?
Metalloid
Boron groupPeriod 2 element
Boron/Chemical series
