1) In the cloud around the nucleus there are a) protons b) neutral style c) electrons 2) Protons have a a) positive charge b) neutral charge c) negative charge 3) Neutrons have a  a) negative charge b) neutral charge c) positive charge 4) Electrons have a a) negative charge b) positive charge c) neutral charge 5) _______________ are made up of just one type of atom a) protons b) elements c) electrons 6) The atom is made up of a ___________ a) nucleus b) protons c) electrons 7) Subatomic particles found in the nucleus are: ____________ and _______________ a) protons and electrons b) nucleus and protons c) neutrons and protons

Science Practice

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?