1) This is the negatively charged subatomic particle a) Proton b) Electron c) Neutron d) Atom 2) It has no electrical charge. a) Proton b) Electron c) Neutron d) Atom 3) I am a positively charged subatomic particles a) Proton b) Electron c) Neutron d) Atom 4) What do you the particles that are present to most basic level in everything we see around? a) Proton b) Electron c) Neutron d) Atom 5) He discovered proton. a) J. J. Thomson b) E. Goldstein c) J. Chadwick d) J. Dalton

만든이

순위표

비주얼 스타일

옵션

템플릿 전환하기

자동 저장된 게임을 복구할까요?