Chemistry - Atoms
What are the three subatomic particles?
Protons
Neutrons
Electrons
What are the rows and columns called on the periodic table?
Periods and groups
What is the name of the below chemical reaction?
A + B --> AB
Combination reaction
What is the symbol used for the angle of reflection?
r
Draw a wave with a higher frequency and one with a lower frequency. Label them.
Drawings.
What is the charge of a proton and where is it located in an atom?
Positive
In the nucleus
What does the atomic number represent?
The number of protons
What is an ionic bond?
A bond formed between a metal and a non-metal
In a transverse wave, how do you measure the amplitude? Draw an image
From the middle line to the top of a crest on the wave
What are the three primary colours of light?
Red
Green
Blue
How do you calculate the number of neutrons in an element?
Mass number - atomic number = number of neutrons
When is the charge of a Magnesium ion?
And why?
2+
It has 2 electrons in the outer shell so it loses them.
Protons outweigh the electrons.
What is the name for a positive ion?
What is the name for a negative ion?
Cation
Anion
What is the law of reflection?
The angle of incidence is equal to the angle of reflection when light is reflected off a mirror
What two primary colours mix to form the secondary colour of magenta?
Red and blue
What is an isotope?
Two or more elements with the same number of protons and a different number of neutrons.
What group is Oxygen in?
16
What are the reactants in a neutralisation reaction?
An acid and a base
What is the line that runs perpendicular to the material/object in a reflection/refraction image/diagram?
The normal
Explain why light can travel in space but sound cannot.
Sound requires a medium/material to travel through (liquid, solid, gas) whereas light does not.
Which two sub-atomic particles have the same weight? And what is the weight?
Protons and Neutrons
1 AMU
What is the element name for Au?
(Without looking at your periodic table)
Gold
What is an endothermic reaction?
Give an example.
An endothermic reaction is cooler than the surroundings.
E.g. Ice melting, photosynthesis.
In a transverse wave, where are the compressions?
At the crest of the wave
Who is the coolest teacher at Clayfield College?
Ms Andrew