Show:
Valence
Metric Units
Sig Fig Rules
Family Names
Conservation of Energy
100
The electrons in the highest occupied energy level of an element's atom are?
What is a valence electron.
100
The metric units used in science are based on multiples of what?
What is 10.
100
All the digits that can be known precisely in a measurement, plus a last estimated digit is known as what?
What are Significant Figures.
100
A family group is found where on the periodic table?
What is a vertical column.
100
Mass holds what during physical changes?
What is constant
200
The number of valence electrons largely determine what?
What is chemical properties.
200
The metric system was originally established in what country?
What is France.
200
Zeros appearing between nonzero digits are?
What is significant.
200
Elements within a group have similar what?
What are physical and chemical properties.
200
The mass of the products is always what to the mass of the reactants?
What is equal.
300
The number of valence electrons are related to what on the periodic table?
What is group numbers.
300
What is the revised version of the metric system?
What is the International Systems of Units.
300
In addition or subtraction the answer should be rounded to how many significant digits?
What is the same number of decimal places as the measurement with the least number of decimal places.
300
Group 1A on the periodic table are called what?
What are alkali metals.
300
The law of conservation states?
What is mass is neither created or destroyed.
400
How many valence electrons do the elements in Group 5A?
What is five valence electrons.
400
What are the five commonly used base units by scientists?
What are the meter, the kilogram, the kelvin, the second, the mole.
400
In multiplication and division how many significant figures do you round to?
What is the same number of significant figures as the measurement with the least number of significant figures.
400
Group 2A on the periodic table is called?
What are alkaline earth metals.
400
Conservation of mass is more easily observed in what?
What is a container.
500
Helium has how many valence electrons?
What is two valence electrons.
500
How many meters are in one Kilometer?
What is 1,000 meters.
500
How many significant figures should the product of 7.55 meters X 0.34 meters have?
What is two significant figures.
500
The elements in the halogen family are called?
What are noble gases.
500
If 10 grams of ice melt how many grams of water are produced?
What is 10 grams.