Beryllium, nhamba yeatomu 4, huremu hweatomu 9.012182, ndiyo yakapfava alkaline yepasi simbi element.Yakawanikwa muna 1798 neFrench chemist Walkerland panguva yekuongorora kemikari yeberyl uye emerald.Muna 1828, muongorori wemakemikari wekuGermany Weiler uye chiremba wemakemikari wechiFrench Bixi vakaderedza beryllium chloride yakanyungudutswa nesimbi ye potassium kuti vawane beryllium yakachena.Zita rayo rechiRungu rakatumidzwa zita rekuti Weller.Zviri mukati me beryllium muvhu repasi ndeye 0.001%, uye maminerari makuru ndeye beryl, beryllium uye chrysoberyl.Natural beryllium ine matatu isotopes: beryllium-7, beryllium-8, uye beryllium-10.

Beryllium isimbi yepfumbu;melting point 1283°C, boiling point 2970°C, density 1.85 g/cm³, beryllium ion radius 0.31 angstroms, idiki zvikuru pane mamwe masimbi.

Iyo kemikari ye beryllium inoshanda uye inogona kuita dense surface oxide inodzivirira layer.Kunyangwe mukupisa kutsvuku, beryllium yakagadzikana zvakanyanya mumhepo.Beryllium haigoni kuita chete ne dilute acid, asiwo inonyungudika mune yakasimba alkali, ichiratidza amphoteric.Oxides uye halides zveberyllium zvine hunhu huri pachena, maumbirwo eberyllium anoora zviri nyore mumvura, uye beryllium inogonawo kuumba mapolymers uye covalent makomisheni ane pachena kupisa kugadzikana.

Metal beryllium inonyanya kushandiswa seneutron moderator mune nuclear reactors.Beryllium copper alloys inoshandiswa kugadzira maturusi asingaburitse mazhenje, senge makiyi anofamba einjini, aero-engines, precision zviridzwa, etc. uye kugadzikana kwakanaka kwekupisa.Beryllium makomisheni ane chepfu kumuviri wemunhu uye ndeimwe yenjodzi huru dzeindasitiri.