QUESTION 2   This question is about the element beryll…

QUESTION 2   This questiоn is аbоut the element beryllium.   а Use the wоrds below to complete the sentences аbout beryllium.   electrons     negative     neutral     neutrons nucleus     positive     protons     shells   Each word may be used once, more than once or not at all.   An atom of beryllium has a central .............................................................. that contains particles called .............................................................. and .............................................................. . Around these particles there are .............................................................. orbiting in .............................................................. . An atom of beryllium has no charge because it contains equal numbers of .............................................................. and .............................................................. . The particles with the lowest mass in an atom of beryllium are called .............................................................. . (7) b Beryllium forms a compound with the formula BeCO3   b(i) How many different elements are there in BeCO3?   (1) b(ii) What is the total number of atoms in the formula BeCO3? (1)