| Author | Message | ||
     Ｌ.ｈiｍ〞 Username: 20021134 Registered: 04-2003 |
我想知道一ｄ野,,下面有幾個問題,.,希望咁多位勁人可以解答下我: 1.請問neutron響atom入面有咩用呢? 2.點解electron帶負電何,,而protron帶正電,何.,但係佢地又唔會互相吸住呢?(例如hydrogen咁丫,佢個atom入面得一個electron同埋protron,但係點解又唔會兩個相吸ｇa呢?) 3.點解electron會圍住粒原子核轉呢,,究竟佢ge能量係邊度黎ｇa呢??? 我希望咁多位可以幫我解答下ｄ問題aｒ,,.,唔該哂! | ||
| 991073 Username: 991073 Registered: 04-2003 |
1. neutron acts as an air cushion in the nucleus to minimize the repulsion between +ve charged protons 2&3. 其實electron唔係真係圍住粒原子核轉,只不過係低form比你易d明,electron同protron之間係有attraction,而electron係無一個特定的軌跡,electron density cloud 就係d人做實驗搵electron 有機會出現o既位置,it shows that the probability of finding the electron is the highest at the bohr's radius and the probability of finding the electon near the nucleus is higher than that far away from nucleus. However, "where does the electron energy come from?" It has to ask Mr. Chio or Mr. Wong. I hope I can answer some of your questions | ||
| 鬼川云音 Username: 20021151 Registered: 04-2003 |
wow! so thank you * i understand it! i want to ask is that group 1/2 elements + group 7 elements --> salt?? is that really that group 2 elements are all reacts with group 7 elements to from salt? | ||
| Ｌ.ｈiｍ〞 Username: 20021134 Registered: 04-2003 |
NaCl幅圖究竟係點畫ga...係咪咁呀? http://hk.geocities.com/danger31hk/NaCl.jpg |