Why was helium absent from mendeleev's original periodic table of 1871?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Why was helium absent from mendeleev's original periodic table of 1871? ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
How can a molecule be nonpolar when it consists of atoms that have different electronegativities?
Answers (1)
Which of the following cycles tracks the movement of water in the hydrosphere? A. the hydrologic cycle B. the nitrogen cycle C. the rock cycle D. the hydrogen cycle
Answers (1)
5.40 g B how many atoms
Answers (1)
Why can water dissolve many substances
Answers (1)
The addition of heat energy to a system always causes the temperature of that system to increase. True False
Answers (1)
New Questions in Chemistry
Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete
Answers (2)
Which of the following is a characteristic of nonmetals? a. nonmetals are often shiny and hard. b. nonmetals are often malleable. c. Nonmetals do not conduct electricity. d. nonmetals are often ductile.
Answers (2)
How does a change in temperature affect the kinetic energy of the particles in a reaction?
Answers (1)
Which characteristic best identifies an Arrhenius base
Answers (2)
Which statement correctly describes why a compound is a pure substance? O A compound is not a pure substance because each of its molecules is m elements A compound is a pure substance because its molecule cannot be broken O A compound is not a pure
Answers (1)