elements
Name the element: O
Where is the nucleus located in an atom?
In the middle
what is the centre of an atom called?
Nucleus
what are the three states of matter?
Solids, liquids and gas
What is a solution?
A mixture where one substance (solute) is completely dissolved in another (solvent).
Name the element: H
Hydrogen
What charge does an electron have?
Negative
what two particles are found in the nucleus?
Protons and Neutrons
how are particles arranged in a solid?
Tightly packed in a fixed, orderly pattern.
What is solubility?
The amount of solute that can dissolve in a solvent at a certain temperature.
Name the element: C
Carbon
what are the three main parts of an atom?
Proton, Neutron and Electron
Where are the electrons found?
In shells or energy levels around the nucleus
What happens to particles in a liquid?
They move around each other but stay close together.
What is the solvent in a saltwater solution?
Water
Name the element: Mg
Magnesium
What is an Atom?
what charge does a proton have?
Positive
How do gas particles behave?
They move quickly and spread out to fill the space
What does it mean if a solution is saturated?
No more solute can dissolve in the solvent at that temperature.
Name the element: Fe
Iron
what is an element?
Substance made of only one type of atom
why is an atom overall neutral?
Because they have the same number of protons and electrons
What causes matter to change from one state to another?
Changes in temperature or pressure.
How does temperature affect solubility?
Usually, solubility increases as temperature increases.