Most of the elements in the periodic table are...?
Metals
100
What does the number 6 at the top of a Carbon element mean?
A carbon nucleus has 6 protons.
100
What does the 2 in this equation stand for? - 2C
Coefficient
100
About how many elements on the periodic table?
*Give a range between numbers
between 100 and 125
100
If Lavoisiere heated 50 grams of powdered mercuric oxide to produce 46.5 grams of liquid mercury, how much oxygen would be released?
3.5 grams
200
What best describes the properties of metals?
shiny, malleable, and conductive
200
Chlorine, Fluorine, Bromine, iodine, and astatine make up group 17, the halogens. Why are these elements grouped together?
What is "all non reactive gases that have similar chemical properties
200
The number 2 found at the bottom right hand corner of Hydrogen is called the ___________.
What is" the subscript"
200
A horizontal row on the periodic table is called ?
A period
200
Balancing a chemical equation so that the same number of atoms of each element is found in both the reactants and the products is an example of ?
The Law of Conservation of Mass
300
Electrons in the outermost shell of an atom are called _____ electrons?
valence
300
Reactancts on the left side will react to yeild the _______
What is "Product"
300
The arrow starting from the reactant side and pointing to the products side is called the _______________
What is "yield"
300
A vertical column of elements on the periodic table is called ?
A group
300
What is the law of conservation of mass ?
Mass cannot be created or destroyed in a chemical reaction
400
To find the number of outer shells an element has, you must look at ______ number?
Group
400
The vertical column of elements on the periodic table is called
What is "group"
400
What is a product?
What is " the result or yield of a group of reactants"
400
What order are the regions arranged on the periodic table from left to right?
metals, metalloids, nonmetals, and noble gases
500
Alberto has an element that is a shiny, ,brittle solid and conducts electrical current. Which class does it most likely belong to?
Metals
500
The group of elements that have the properties of both metals and non metals ae:
What is "metallods"
500
Name three metals popularly used in every day life
What is "Gold, Silver, Aluminium"
500
What is the purpose of the zigzag line on the right side of the periodic table?
Divides the metals and nonmetals AND shows where the metalloids are
500
When wood combines with oxygen and burns, ashes and carbon dioxide are produced. How does the Law of Conservation of Matter relate to this observation?
The mass of the wood and the oxygen burned will equal the mass of the ashes and the carbon dioxide produced during the reaction.