Subatomic Particle Periodic Table Matter and Energy : Definitions and observations Chemical Reactions Energy and Organisms
100
what is the opposite of an electrical charge of a proton?
The electrical charge of an Electron
300
what group is located opposite of where metal is located?
Non-Metal
100
2 or more atoms combined are refereed to as
Molecule
100
What does a coefficient tell you?
# of molecules
100
What organisms on the food web have the most available energy?
plants / producers
200
What is located in the inside of the nucleus of an Atom, has a neutral electrical charge, and has a relative mass of 1 amu?
A Neutron
100
How many groups or families of elements are on the table?
18
200
2 or more different elements combined
Compound
200
What does a subscript tell you?
# of atoms
200
Which of the following elements is the least reactive metal?
A. K
B. Ca
C. Mn
D. Zn
Zn
300
where do you find the number of valence electrons of an element?
on the top of the element box
200
they determine chemical properties and reactivity of an element
Valence Electrons
300
change in properties – new substance formed
Chemical Change
300
List at least 4 elements that make up most organic Molecules
carbon ,hydrogen, oxygen, phosphorus, nitrogen, or sulfur
300
Which of the following is the better conductor?
A. Ge
B. S
C. Au
D. C
Au
400
What is located in the inside of the nucleus of an Atom, has a positive electrical charge, and has a relative mass of 1 amu?
A Proton
500
What has shiny luster, good conductivity, and also has Malleability?
Metals
400
combination of symbols and formulas that describe a chemical reaction
Chemical Equation
400
answer the following in regard to this molecule :CaCO3
-how many atoms? -How many elements?
-How many molecule? -is it a symbol or a formula?
5 atoms
1 molecule
3 elements
a formula
400
an object has a density of 15 g/ml and a volume of 20ml what is it's mass ?
300 g
500
What is located Outside the nucleus of an Atom, has a negative electrical charge, and has a relative mass of 1/1836
An Electron
400
Elements that have similar properties have the same ..............
Number of Valence Electrons
500
List at least five indicators of a chemical Reaction
unexpected color change, precipitate forms, gas production (bubbles, fizzes), change in temperature, change in odor, change in properties
500
Which of the following is not a physical change?
-Mouth -small intestine
-Stomach -Esophagus
-Small intestine
700
During cell respiration, sugar (C6H12O6) reacts to form carbon dioxide (CO2) and water (H2O). Which of the following best explains what happens during cell respiration?
A. Single atoms are formed into different elements.
B. Atoms are rearranged into diffe
Atoms are rearranged into different compounds.






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