Matter - Questions Flashcards
What is matter?
What every thing is made of
How many elements are there?
There are 118
What is the charge of a electron?
-1
What is the charge of a proton?
+1
What is the charge of a neutron?
0
What is the charge of a atom?
0
What makes an atom positively or negatively charged?
This is due to the transfer of electrons.
What is the most dense, solid or liquid?
Solid
What state of matter has the most kinetic energy?
Gas
What are the three states of matter?
Solid, liquid, gas
Who’s work is the modern periodic table based on?
Mendeleev’s observations
What is the mass of a proton and neutron?
1.67 x 10 ^ -27kg
What is the mass of an electron?
0.0009 x 10 ^ -27kg
What is the general rule for how many electrons each orbital can hold?
2n^2 electrons
What is the short form of mercury?
Hg
What is the short form of potassium?
K
What is the short form of silver?
Ag
What is the short form of gold?
Au
What is the short form of tin?
Sn
What is the short form of antimony?
Sb
What is the short form of tungsten?
W
What is the short form of Iron?
Fe
What is the short form of copper?
Cu
What is the short form of sodium?
Na
What is the short form of lead?
Pb
What is the particle arrangement and behaviour for a solid?
1) there are strong forces of attraction between particles
2) particles are usually in a regular arrangement
3) particles are close together and vibrate about fixed positions
What is the particle arrangement and behaviour for a liquid?
1) weak forces of attraction between particles
2) random arrangement of particles
3) particles move about freely but they are close together
What is the particle arrangement and behaviour for a gas?
1) very weak forces of attraction between particles
2) random arrangement of particles
3) particles move about freely and are far apart
What are the properties of a solid?
- has definite shape and volume
- has a fixed surface
- usually has a high density
- cannot easily be compressed
- expands a little on heating
What are the properties of a liquid?
- takes on the shape of its container
- has a definite volume
- has a surface
- low density
- cannot easily be compressed
- expands on heating
What are the properties of a gas?
- has no definite shape or volume
- has no surface
- has very low density
- can easily be compressed
- expands greatly on heating
Which liquid doesn’t freeze?
Helium
