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periodic table elements
Atoms
ECM
property's
harder questions
100
the family that is the most reactive metals
What is alkali metals
100
what is the smallest unit of an element
What is an atom
100
Is a solid brick of gold (Au) an element, compound or mixture?
What is an element
100
A physical property is a characteristic of a substance such as density, color or hardness. T or F
What is True
100
If the entire population of the world were lizards and wizards and they were at constant war would the The Large Hadron Collider awaken Osiris and make everyone realize the moon isn't real, because Today Is Four Days At Once also dinosaurs built the pyramids, syri can predict the actual apocalypse, and Hilary Clinton is actual dead but she gor replaced by a body double.
What is maybe when I'm older
200
What is the name given to a vertical column on a periodic table where the elements in that column have similar properties
What is family
200
Protons have a positive charge and are located in the nucleus of an atom. T or F
What is True
200
What is a substance that is physically combined and can be physically separated?
What is a mixture
200
A chemical property of a substance describes a substance ability to float in water T or F
What is False
200
Sulfuric acid (H2SO4) would be considered...
What is a compound
300
where are the alkaline earth metals located on the periodic table
What is 2nd from the left
300
f Neon, Ne, has an atomic number of 10, then how many protons does it have?
What is 10
300
If I were to combine sugar, koolaid powder, and water by putting them in a pitcher and stirring them together to make koolaid, then what have I just made?
What is a mixture
300
A chemical property of a substance is flammability or reactivity. T or F
What is True
300
As a general rule, elements in Group 17 (halogens) form compounds. Consider the following section of the periodic table. is true about this family? a. These elements are very reactive with other elements and compounds.This answer is correct. b. These elements are very unreactive with other elements and compounds. c. These elements are within the same period. d. These elements have the same atomic number.
What is A
400
What is the name of the family of elements that are located along the staircase on the periodic table?
What is metalloids
400
An element is made up of the same kinds of atoms. T or F
What is true
400
Substances that CANNOT be broken down chemically or physically into other substances are
What is element
400
How do you know if something has chemically reacted? a. Color change. b. Temperature change. c. Gas formation (bubbles, fizzing) d. All of the answers are correct.
What is D
400
Potassium (K) is on the far left of the periodic table. What is true about potassium?
What is it is a reactive metal
500
Everything on this earth is made of elements on the periodic table.
What is very true
500
What charge does a neutron have?
What is neutral
500
Elements are composed of extremely small particles called
What is atoms
500
Why is aluminum being very malleable a useful physical property?
What is it can be bent rolled or shaped
500
albert and Bernard just became friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates: May 15, May 16, May 19, June 17, June 18, July 14, July 16, August 14, August 15, August 17. Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively. Albert: I don't know when Chery's birthday is, but I know that Bernard does not know too. Bernard: At first I don't know when Cheryl's birthday is but I know now. Albert: Then I also know when Cheryl's birthday is. So when is Cheryl's birthday?
What is july 16