World Book Trivia Quiz For Kids-5/22-chemical Elements
- 1.
Which of the following scientists did NOT help develop the Periodic Table?
- A.
Mendeleev
- B.
Meyer
- C.
Murgise
Correct Answer
C. MurgiseExplanation
Dmitri Ivanovich Mendeleev (1834-1907) was a Russian chemist who developed a form of the periodic law, a basic principle in chemistry. His law states that the properties of chemical elements recur in regular patterns when the elements are arranged according to their mass (amount of matter). Mendeleev's work, together with that of the German chemist Julius Lothar Meyer, led to the periodic table, a systematic arrangement of the elements.Rate this question:
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- 2.
How many named elements are there currently?
- A.
114
- B.
122
- C.
128
Correct Answer
B. 122Explanation
There are 114 recognized elements, and each has its own kind of atom. Scientists believe there are still more to be discovered.Rate this question:
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- 3.
What is the symbol for Iron?
- A.
Fe
- B.
I
- C.
Ir
Correct Answer
A. FeExplanation
Elements have symbols and numbers as well as names. A symbol is like an abbreviation. The symbol for oxygen is O and the symbol for hydrogen is H. Fe, the symbol for iron, comes from ferrum, the Latin word for iron.Rate this question:
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- 4.
What are two or more elements joined together called?
- A.
Compound
- B.
Additions
- C.
New elements
Correct Answer
A. CompoundExplanation
Elements can join with one another to form a compound. The compound may be very different from the elements that make it up.Rate this question:
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- 5.
What is the atomic number for oxygen?
- A.
6
- B.
7
- C.
8
Correct Answer
C. 8Explanation
An element's number, called its atomic number, tells something about its atom. Hydrogen's number is 1, because a hydrogen atom contains 1 proton. A proton is a piece of matter found within every atom. Oxygen's atom has 8 protons, so its number is 8.Rate this question:
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- 6.
What compund is produced from sodium and chlorine?
- A.
Water
- B.
Gas
- C.
Salt
Correct Answer
C. SaltExplanation
Many chemicals contain two or more elements joined together. These chemicals are called compounds . Water is a compound of hydrogen and oxygen. Salt is a compound of sodium and chlorine.Rate this question:
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- 7.
An early theory developed by Greek philosopher, Empedocles, had what force joining elements together to form compounds?
- A.
Strife
- B.
Love
- C.
Happiness
Correct Answer
B. LoveExplanation
Empedocles said that a force called love causes the elements to come together as compounds. He claimed that a force called strife (conflict) causes the compounds to break up.Rate this question:
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- 8.
The symbol for gold is Au, which language does the symbol come from?
- A.
Spanish
- B.
Latin
- C.
Arabic
Correct Answer
B. LatinExplanation
A symbol is like an abbreviation. The symbol for oxygen is O and the symbol for hydrogen is H. Au, the symbol for gold, comes from aurum, the Latin word for gold.Rate this question:
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- 9.
Which element has the symbol Pb?
- A.
Lead
- B.
Iodine
- C.
Polonium
Correct Answer
A. LeadExplanation
Pb is the symbol for lead.Rate this question:
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- 10.
What color does the element barium make fireworks burn?
- A.
Red
- B.
Blue
- C.
Green
Correct Answer
C. GreenExplanation
Barium nitrate makes signal flares and fireworks burn with a green flame.Rate this question:
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Mar 16, 2022Quiz Edited by
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May 22, 2012Quiz Created by
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