1) What symbol represents chlorine? a) CO b) CI c) CR d) CE 2) What is the physical state of Venadium? a) Gas b) Liquid  c) Solid d) Synthetic Element 3) what classification is Arsenic? a) Metal b) Non-metal c) Metalloid d) Unknown 4) What element does this symbol represent? K a) Kripton  b) Calcium c) Potassium d) Carbon 5) What is the atomic number of the Dubnium? a) 37 b) 40 c) 106 d) 105 6) What is the atomic mass of the Dysprossium? a) 162.5 b) 168.9 c) 289 d) 101.1 7) What is the period of Osmium? a) 2 b) 4 c) 6 d) 1

Clasament

Stilul vizual

Opţiuni

Comutare șablon

Restaurare activitate salvată automat: ?