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Atoms
Periodic Trends
Elements
Atomic Masses
Families/Groups
100
Daily Double! List all subatomic particles and their charges
Protons (+), Neutrons (-/+), Electrons (-)
100
What is the term used to describe atoms in a vertical column on the periodic table?
A group or family
100
What element has a symbol of Sb?
Antimony
100
What UNITS do we use to describe the mass of an atom? What does this stand for?
AMU Atomic Mass Units
100
What are 3 TYPES of elements that are found on the periodic table?
Metals, Metalloids, Non-metals
200
What part of the atom consists of protons and neutrons?
The nucleus
200
What is the term used to describe a horizontal row of atoms in the periodic table?
A period
200
Daily Double! In Tin's period table square has the numbers 50, and 119.69, what are these numbers called and what do they mean?
50 is the atomic number and is the number of protons and electrons in the atom. 119.69 is the atomic mass, and is the mass of protons plus the mass of neutrons in the atom.
200
How do you calculate the number of neutrons in an atom?
Subtract the atomic mass from the atomic number.
200
Which group is more reactive, the Alkali Metals? or Alkaline Earth Metals?
Alkali Metals
300
What is the name of the region where electrons can be found?
The electron cloud
300
Atoms on the left of a period are (good/poor) conductors of electricity.
Good
300
What is the mass of the nucleus of a potassium atom?
39 amu
300
what element has 35 Neutrons and 29 electrons? How many protons does it have?
Cu (copper), and it has 29 protons
300
Daily Double! what are 3 properties of metals?
they are malleable, ductile, they are good conductors of electricity, and combine with oxygen in the air (corrosion)
400
What atom has 1 proton, 1 electron, and no neutrons?
Hydrogen
400
Daily Double! Atoms on the left of the periodic table are (more/less) reactive than atoms on the right.
More
400
Which atom has more electrons, Sodium or Phosphorus? why?
Phosphorus, because it's atomic number is 15
400
What atom has 4 neutrons, and 3 protons? how many electrons does it have?
Lithium, 3 electrons.
400
What are 3 characteristics of non-metals?
they are poor conductors of electricity, reactive with other elements, they are dull and brittle.
500
What is an isotope?
An atom of an element with a different number of electrons.
500
What atom is more dense, Gold or Copper? Why?
Gold, because it has a heavier atomic mass.
500
What are the differences and similarities between C-12, and C-14? This is an example of an __________.
C-12 and C-14 both have 6 protons and electrons, but C-12 has 6 neutrons, and C-14 has 8. This is an example of an isotope.
500
Daily Double! If an element has an atomic mass of 131, and has 77 neutrons, how many protons and electrons does it have? What is this element?
54 protons and electrons. Xenon, symbol Xe
500
Noble gases easily bond with other elements, T or F? Why?
False, they do not easily share, gain, or lose electrons.