Each chemical element is characterized to number of proton that an atom of that element contains, called its  atomic number

Câu hỏi liên quan

• Tea did not become popular in Europe until the mid 17th century when it has been imported to England and Holland.

• In a medical study of nearly 5.000 adults, half of them were given one aspiri day and the other half given a placebo, it was found that those taking Aspirin suffered 38 percent fewer heart attacks those who weren’t.

• Marie Curie, a famous Polish physician, won he Nobel Prize when she discovered the radioactive metal Radium and Polonium.

ZUNIA12

• New York City surpassed the order Atlantic seaports in partly because it developed best transportation links with interior of the country.

• He  ............  on many subjects at the meeting.

• Choose the correct answer to complete the sentence. " In Thailand, it's against the law to litter on the pavement. _____ you are caught, you can be fined up to $2000 Baht."

• Choose a, b, c, or d that best completes each unfinished sentence:

  The quiet country roads are ideal for cycling.

• Before we returned from swimming in the river near camp, someone had stole our clothes, and had to walk back with towels around us.

• Emergency relief, including medicines, clothing, and foodstuff, were sent to the earthquake immediately following new of the disaster.

• The world’s rain forests are being cut down at the rate on 300 acres per hour

• Choose the correct answer to complete the sentence. "ASEAN ______ different projects and activities to combine its members"

• The right to vote granted to women after only the adoption of the 19th Amendment 1920.

• Bill was about average in performance in comparison with other students his class

• A waterar molecule consists of two hydrogen atoms and has a oxygen atom.

• A flammable liquid it was used to ignite fire that burned part of the blighted Nairobi Shop Centre.

• There is no Oxygen in space to support the combustion of fuels as is there the air on the Earth 

• “That’s a nice dress you are wearing” – “_______”

• Every scientist know that gravity is the force that maintains the earth and the planet its orbit around the Sun.

• Until Hollywood invented him, Leonardo DiCaprio was practical unknown.

• The two men, disguising as security guards, overpowered staff (at the bank and escaped with £150,000.