common elements
scientists
halogens
acid or base
transition metals
100
what element is found in toothpaste?
What is flouride.
100
who discovered that electrons have a negative charge?
Who is J.J. Thompson.
100
what group do the halogens belong to in the periodic table?
What is group 7.
100
what is in lemon juice?
What is an acid
100
what are three transition metals?
What are Iron, Nickel, and Copper?
200
what element is found in sunscreen?
What is zinc.
200
whos model was the first to establish that the nucleus is the center of the atom?
Who is Ernest Rutheford.
200
what is the gaseous molecule formed when hydrogen reacts with the halogens?
What is what is hydrogen halide.
200
what is vinegar?
What is an acid?
200
what are three properties of transition metals?
What are hard, dense, high melting point?
300
what element is found in licorice?
What is manganese.
300
who stated that electrons travel the nucleus in fixed orbit.
Who is Niels Bohr.
300
what are the halogen elements.
What are fluorine, chlorine, bromine, iodine, and astatine.
300
what is baking soda?
What is a base?
300
what are three transition metals found in all U.S. coins?
What are copper, zinc, and nickel?
400
what element is found in lipstick?
What is titanium.
400
his principle stated that it is impossible to know both the location and speed of an electron at the same time?
Who is Werner Heisenberg.
400
what is halogen in the compound HCl?
What is chlorine.
400
what is ammonia?
What is a base?
400
what is an additional metal found in new golden dollar?
What is manganese?
500
what elements are found in chocolate?
What are carbon, hydrogen, and oxygen.
500
who discovered the neutron?
Who is James Chadwick.
500
what is halogen used to prevent tooth decay?
What is fluorine.
500
what is distilled water?
What is nuetral?
500
what are three coins that have the exact same composition?
What are dime, quarter, and half dollar?
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