Theo đề bài ra ta có :
`e + p +n =36`
`=> 2p + n =36`
Mà số điện mang điện tích gấp đối số hạt không mạng điển nên :
`=> 2p = 2n => p =n`
Khi đó :
`p = e = n = 36/3 =12`
Vậy `e = p = n =12` (hạt )
Giải:
`p + e + n = 36`
`-> 2p + n = 36`
mà `2p = 2n`
Do đó, `2n + n = 36`
`-> 3n = 36`
`-> n = 12`
`-> p = e = (36 - 12)/2 = 12`
Vậy `p = e = n = 12`
6) to/ play/ five/ He/ piano/ started/ the/ years/ ago ................................................................... 7) he/ was/ not/ hungry/ all/ had/ day/ Tim/ because/ eaten ..................................................... 8) letter/ the/ ,/ opening/ the/ was/ telephone/ I/ rang/ While ........................................... 9) the/ during/ quite/ Britain/ much/ winter/ It/ snows/ in .......................................................... 10) seen/ were/ the/ ever/ They/ poorest/ people/ I/ had/ .................................. giúp em vs ạ em xin cảm ơn
Làm giúp mình 4 câu đầu nha các bạn thông cảm ảnh hơi mờ
Make question for underline parts : 1They meet LAN everyday. 2,THEY meet Lan everyday 3,PETER meet Lan everyday 4,They met LAN yesterday 5,THEY met Lan yesterday 6,We HAVE met Lan ( Từ viết hoa là từ gạch chân)
Giải giúp bài 4 , nhanh chi tiết ạ
giúpppppppppppppppppppppppppppppppppppppppppppppp
ko bt cos ai lam dc ko nhanh gap a
giúppppppppppppppppppppppppppppppppppppppppp
Choose the correct words given to fill in the blanks. exorbitant – nagging – persistent – splitting – health-damaging 1. A ________cough may be a sign of postnasal drip, asthma or an infection like the common cold, the flu or pneumonia. 2. Improving your healthy lifestyle can be easier than you think, especially if you have any of these ________ habits that are actually bad for your health. 3. It's a nice car, but they are charging a(n) ________ price for it. 4. They hold their heads tight when coughing because of the ________ headache. 5. A ________ pain is not very severe but is difficult to cure.
1. Dan couldn't work because he caught the flu. down → Dan ______________________, which meant he couldn't work. 2. Is it true that getting wet can cause a cold? on → Is it true that getting wet can _____________________? 3. The flu epidemic started suddenly in June and lots of people got ill. out → Lots of people got ill when the flu epidemic ___________________. 4. I think the medicine is beginning to stop being effective. wear → I think the medicine is beginning to ________________. 5. It was so hot in the stadium that a number of people suddenly became unconscious. passed → It was so hot in the stadium that a number of people suddenly _______________.
Tóm tắt, khái quát nội dung, nêu vấn đề được đặt ra trong những văn bản sau: 1 Cổng trường mở ra 2 Mẹ tôi 3 Cuộc chia tay của những con búp bê Em cảm ơn mọi người ạ
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