Tiêu đề CHE JR AS M 14 OBJ LEVEL 01(26 May 2016).ppt ✅

ATOMIC STRUCTURE
ATOMIC STRUCTURE OBJECTIVE LEVEL – I
1) Very low pressure of the gas and high voltage. 2) Very high pressure of the gas and high voltage. 3) Very low pressure of the gas and very low voltage. 4) Very high pressure of the gas and very low voltage. Solution : 1. The electrical discharge through the gases in cathode ray discharge tube was observed at In a discharge tube at low pressure, high voltage rays moving from cathode to Anode.
1) Atom 2) Molecule 3) Nucleus 4) Neutron Solution : 2. The smallest particle of an element which can take part in chemical reactions and may or may not exist independently is the Atom is the smallest particle of an element which can take part in chemical reactions.