Flashcards in Midterm Exam Deck (31):
Protons can be identified by?
The atomic number
Electrons can be identified by?
The atomic number
Neutrons can be found by?
Atomic mass - Atomic number
What are the rows (horizontal)called on the periodic table?
There are 7
What are the columns (vertical) called on the periodic table?
Groups or families
There are 18
Where is the most reactive metal located on the periodic table?
At the bottom (the last) group
Of the alkali metals
Where is the most reactive gas located on the periodic table?
On the top (the first) of the group
Of the halogens
Are Nobel/inert gases non metals or metals?
Non metals, these gases are very un reactive
What are 3 things that conduct electricity?
(All have to be in water)
1. Salt and water
2.Acid and water
3.Base and water
Fossil fuels energy
Produces a lot of pollution by releasing carbon dioxide in the atmosphere
Uranium Nuclear energy
Extremely dangerous and very toxic a small amount can produce a lot of energy
Found below the lithosphere
The building of dams will often flood large areas, affecting various animals and plants
Needs buoys that go up and down, does not pollute, not yet popular because it is expensive
Is due to the gravitational forces of the moon and sun,electricity can be generated by a 5 meter tide
Cannot be stored, needs to be used with another type of energy, can be ugly and noisy
Needs sunshine, can sometimes look ugly, does not pollute
Mass is calculated in?
Volume is calculated in?
Concentration is calculated in?
Formula for PPM
Mg/L (liquid) or Mg/Kg (Solid)
Mass of solute (mg)/ volume of solution (ppm)
Battery which is the power source, provides energy to the circuit
Carries the current
Measures the current intensity
Converts electrical energy into other forms of energy
Component that generates light also a resistor
Mesures the voltage always on the outside of the circuit behind the resistor
Controls the current, if switch is open then the circuit will not function
Describe a series circuit
Elements are linked directly together from one end to another, follows the same pathway