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Matter
Question | Answer |
---|---|
Where are transition metals located on the periodic table? | In the middle and the bottom of the periodic table |
Where are the least reactive elements on the periodic table? | Far right |
Where are the most reactive elements on the periodic table? | Far left |
Where are the metalloids on the periodic table? | Zig Zag line on the right |
Where are the nonmetals on the periodic table? | Upper right area |
Where are the metals on the periodic table? | On the left |
What is the smallest part of an element? | Atom |
What is the smallest part of a compound? | Molecules |
What does a period represent? | Each row is called a period. Elements in each period have the same number of electron shells. |
What does a group represent? | Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. |
What is the definition of mass? | Mass is a measure of the amount of matter in an object. |
What is the Law of Conservation of Matter? | Matter cannot be destroyed or created. |
What is the definition of density? | Compactness of and object. |
What is the formula for density? | P= m/v |
What are the types of physical properties? | appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, phase of matter |
What are the types of chemical properties? | Toxicity, Reactivity, Combustion, |
What is the definition of melting point? | the temperature at which a given solid will melt. Same temp as freezing point |
What is the definition of combustibility? | How easily a substance will catch on fire. |
What is the definition of reactivity? | How easily two substances react to each other |
What is the definition of boiling point? | the temperature at which a liquid boils and turns to vapor. |
What is a solute? | the minor component in a solution, dissolved in the solvent. |
What is a solvent? | able to dissolve other substances. |
What is a solution? | a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent). |
What is a homogenous mixture? | A homogeneous mixture is a mixture that cannot be separated. Pure substances |
What is a heterogeneous mixture? | A heterogeneous mixture is a mixture that can be separated |
What does the atomic number represent? | How many protons are in the nucleus of an atom |
What does the atomic mass represent? | Protons plus neutrons |
What is a noble gas? | An element that is nonreactive |
How do you find the number of neutrons? | Subtract the number of protons from the mass number. |
What are reactants and products? | Reactants are what you add together, the products is what it makes |