Each chemical element is characterized to the number of protons that an atom of that element contains, called it atomic number.

Câu hỏi liên quan

• My daughter is learning to play..................violin at .................. school. 

• I only noticed we were running lowly on petrol after we had passed the last filling station.

• Choose the correct answer to complete the sentence.  "In the polluted environment, _______ diseases can be passed easily from one person to another"

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• He never goes home before he will finish his work.

• The firstly naval battle of the Revolutionary War was fought off the coast of Machias, Maine, in June 1775

• When you go to........... store, please buy........... bottle of ...........chocolate milk and........... dozen oranges. 

• The measurement known as a “food” has originally based on the size of the human food

• Dinosaurs are traditionally classified as cold-blooded reptiles, but recent evidence based on eating habits, posture, and skeletal structural suggests some may have been warm-blooded.

•  I told Mom we would be ...................home in ...................hour or so. 

• Sleeping all day, to eat too much and never going out is unhealthy.

• In some species of fish, such the three-spined stickleback, the male, not the female, performs the task of caring for the young.

• Unexploded bombs buried deep in the ground have been found in the construction site opposite of the City Hall

• The ...... friendly products are designed not to harm the natural environment.

• Oil spills are having a devastating effect on coral reefs in the ocean.

• Choose the correct answer to complete the sentence. "Deforestation is one of the _____ environmental threats to the ecological balance in the world"

• Individuals with chronic liver disease is gravely at risk for premature death, heart seizures, strokes as well as hypertension, jaundice, and malnutrition.

• One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Identify them: 

  If we continue to use fuels at the current rate, we would soon have to face a fuel crisis. 

• My mother doesn’t care how much does the washing machine cost because she is going to buy it anyway

• Carrie Chapman Call organized the League of Women Votes after successfully campaign for the constitutional amendment that gave women the right to vote.

• Peter likes to play ...................volleyball, but he is not.................. good player.