Lithium, Beryllium, &

Boron

LITHIUMBy: Sonia Hung

Basic InfoElement name: LithiumElement symbol: Li

Atomic Number: 3

Atomic Mass: 6.941 amu

Solid, liquid, or gas? Solid at 298 K

Metal, nonmetal, or metalloid? Metal

Family Name: Alkali Metal

Discoverer: Johann Arfvedson

Date of Discovery: 1817

Melting Point: 180.5 °C

Boiling Point: 1342 °C

Uses & other factsInteresting stories: It is the lightest metal

on Earth. It’s also one of the elements

that’s theorized to have form at the time

of the Big Bang.

How is it used? If you put water in it &

dry it, then it becomes helium. It’s also

used to make tritium, a type of battery. It

can also be used to make ceramics, rubber products, dyes,

glass, etc.

Physical, chemical properties or unusual facts: Lithium

has a melting point of 180.54°C and a boiling point of 1342°C.

Its density is approximately half that of water. Metallic lithium is

silvery in appearance. It reacts with water & sodium. It is also

corrosive.

BORONBORON

Basic File: BoronBasic File: BoronElement Name: BoronChemical Symbol: BAtomic Number: 5Atomic Mass: 10.811 amuPhase: SolidClassification: MetalloidGroup: 13Period: 2Block: PNumber of Protons/Neutrons: 5Number of Electrons: 6Color: BrownishCrystal Structure: RhombohedralDate of Discovery: 1808Discoverer: Sir Humphry Davy, J.L Gay-LussacMelting Point: 2300.0 °C Boiling Point: 2550.0 °C

Bohr Diagram & Uses, FactsBohr Diagram & Uses, FactsNumber of Energy Levels: 2First Energy Level (Electrons it contains):2Second Energy Level (Electrons it contains):3Obtained From: KerniteUses 1: Heating Resistant AlloysUses 2: Plant nutrientPhysical, Chemical, Properties or unusual facts 1: It’s name comes from Borax and Carbon.Physical, Chemical, Properties or unusual facts 2: Boron is necessary plant nutrient, but over

concentration of boron can be toxic to plants.Physical, Chemical, Properties or unusual facts 3:

Boron is also used as insecticides and preservatives.

Beryllium

FILE

Element name: Beryllium

Element symbol: Be

Atomic Number: 4

Atomic Mass: 9.01 amu

Solid, liquid, or gas? Solid at 298 K

Metal, nonmetal, or metalloid? Metal

Family Name: Alkali Earth Metal

Discoverer: Fredrich Wohler

Date of Discovery: 1798

Melting Point: 1278 °C

Boiling Point: 2970 °C

Uses, Facts

• How is it used: Beryllium is one of the lightest metal and has one of the highest melting points of any light metal. Beryllium metal is used principally in aerospace and defense applications because of its stiffness, light weight, and dimensional stability over a wide temperature range.

• Physical, chemical properties or unusual facts: Beryllium melting point 1278 °C and boiling point 2970 °C. beryllium's very low density, 1.85 g/cm3

Bohr Diagram• Number of Electrons: 4 • Number of Neutrons: 5 • Number of Protons: 4