3 Chemistry Assess Word Scramble
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Question | Answer |
A molecule is | chemically combined |
An example of a homogeneous mixture is | salt water |
An example of a heterogeneous mixture is | concrete |
The “best mixed” of all mixtures is a | solutions |
The smallest particle of an element that has the properties of that element is a(an) | atom |
a shorthand way of representing the chemical elements | Chemical symbols |
The description of a chemical reaction using symbols and formulas is called a chemical | equation |
A substance that is made up of more than one kind of molecule is called is a (an) | mixture |
In sweetened tea, the sugar is called the | solute |
A substance that dissolves in water is said to be | soluble |
Water in salt water would be the | solvent |
To increase the solubility of sugar in water you would increase or decrease the temp | increase |
Electron's Charge | Negative |
Positively charged particle in the nucleus of an atom is the | Proton |
Neutron's Charge | Neutral |
The number of protons in the nucleus of an atom is called the | atomic number |
The sum of protons and neutrons in the nucleus of an atom is called the | atomic mass |
The nucleus of an atom contains | protons and neutrons |
These forces explains that there is a force of attraction between all objects in nature. | gravity |
These forces explain repulsion and attraction. | electromagnetic |
These forces are responsible for radioactivity decay. | Weak |
These force hold proton together. | Strong |
The number at the top of each square in the periodic table is the (= number of protons) | Atomic Number |
The horizontal rows of elements in the periodic table are | periods |
The elements to the left of the stair like dark line on the periodic table | Metals |
Elements within the same vertical column | Family |
The elements in a period are arranged in order by | # of electron Valences |
Elements in the same family of the periodic table have | similar properties |
The two rows that stand alone at the bottom of the periodic table are | rare-earth elements |
The periodic table is arranged by all the known elements in order of | increasing atomic number |
Most of the elements on the periodic table are | metals |
The noble gases are inactive because | their outermost energy level is full |
In chemical combinations, non-metals tend to | gain electrons |
Share the properties of Metals and Non-metals | Metalloids |
Elements in Group 15 would have how many valences electrons? | 5 |
Moving left to right on the periodic table the elements tend to | decrease in activity |
Luster | Metal |
Poor Conductors | Non-metal |
Ductile / Malleable | Metal |
Tend to rust or oxidize | Metals |
Gain Electrons | Non-Metals |
High Melting Point | Metals |
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