Trivia
Which were the first elements to form after the Big Bang started to cool? Hydrogen and helium
Who wrote the book “On the Origin of Species”? Charles Darwin
What is a supernova? The death of a star
Question2 Cassowary
What substance has the formula CuSO4 Copper Sulphate
potassium
When atoms react with each other to form compounds, which subatomic particles are important in determining the type of reaction that occurs? Electrons
What is the symbol for the element Gold? Au
How many elements have the letter x in their chemical symbol? 1- Xenon, Xe
Plenum
What is the formula of sulphuric acid? H2SO4
What substance has the formula of PbCO3 Lead carbonate
How do isotopes of the same element differ? Number of neutrons
What short name is used for a charged atom or group of atoms? Ion
3. Which element in the periodic table was named in honour of physicist Albert Einstein? a) Albertium b) Relativium c) Physicsium d) Einsteinium Answer: D Einsteinium Einsteinium, which has the chemical symbol 'Es' and atomic number 99, was identified in 1954 in debris from the first hydrogen bomb test carried out under the name operation Ivy. Because of its large number of protons and neutrons it's too unstable to exist in nature, so is only produced in nuclear reactions. Like other synthetic elements, it is highly radioactive and toxic.
What are the most common elements in the human body What are the most common elements in the human body? a) Phosphorus, nitrogen, calcium b) Sulfur, sodium, magnesium c) Copper, zinc, selenium d) Oxygen, carbon and hydrogen
10. What are the most common elements in the human body? a) Phosphorus, nitrogen, calcium b) Sulfur, sodium, magnesium c) Copper, zinc, selenium d) Oxygen, carbon and hydrogen Answer: D Oxygen, carbon and hydrogen Oxygen and hydrogen (mostly as water) together with carbon are by far the most common elements in the body accounting for some 93 percent of the body's total mass. Adding three more elements — nitrogen calcium and phosphorus — accounts for 99 percent of the body's mass.
Question1 26 Corgi dogs are said to have originated from WHERE? Wales
pb The symbol for Mercury, which is the only common metal that is a liquid at room temperature, is Hg.
The Periodic symbol for Tungsten is W The Periodic symbol for Tungsten is W. Tungsten is a greyish-white metal that is used in lightbulb filaments. 75% of the world's Tungsten is found in China.
Gold's Periodic symbol is Au Gold's Periodic symbol is Au. Gold is among the most electrically conductive of all metals. It is also an excellent conductor of thermal energy or heat.
When atoms react with each other t form compounds, which subatomic particles are important in determining the type of reaction that occurs? electron http://lovattspuzzles.com/online-puzzles-competitions/daily-online-trivia-quiz/