Particle Theory
Is the following describing a solid, liquid, or gas? Constant shape and volume
Solid
Is silver an element, compound, or mixture?
element
What is the atomic number of helium?
2
What is the physical property that describes amount of mass in a given volume?
Density
What is the name of the horizontal rows on the periodic table?
Periods
Fill in the blank: All particles have __________ between them
Spaces
Is tin an element, compound, or mixture?
element
How many protons are in a nitrogen atom?
7
Name one thing that is evidence of a chemical change.
Production of a gas, production of a new solid in a liquid, production of light, temperature change, new odour, colour change
Which group is not chemically reactive?
group 18/ noble gases
Is the following describing a solid, liquid, or gas? High kinetic energy, particles have enough energy to move relatively far away from one another
Gases
Is salt an element, compound, or mixture?
Compound
How many electrons are in a phosphorous atom?
15
What is the name of the physical property that describes resistance of a fluid to flow?
viscosity
what is the name of group 17?
Halogens
Finish the statement: particles are in constant....
Motion
Is tea an element, compound, or mixture?
mixture
What is the mass of an electron?
essentially 0
What is the physical property that describes the ability of a solid to be stretched into a long wire?
name two properties of alkali metals
malleable, ductile, conduct heat and electricity, silver-grey, low melting points compared to other metals, soft, get softer further down the group, density increases further down the group, react with air and water
Is the following describing a solid, liquid, or gas? Particles vibrate, but do not move past one another
Solid
Is tap water an element, compound, or mixture?
mixture
How many neutrons are in a beryllium atom?
9-4=5
What is the name of the property that describes the ability of a substance to be pounded or rolled into sheets?
malleability
Which class of elements are semiconductors?
metalloids