Which of the following experimental observations proved that the plum pudding model was flawed? (1 point)

Which substances have the lowest melting points: ionic covalent, or metallic

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg