Chemical/Physical Changes
A colour change (new) indicates this type of change.
What is Chemical?
_____________ is made of particles.
What is Everything?
The 3 subatomic particles in atoms and their charges.
What are protons - positive?
What are electrons - negative?
What are neutrons - neutral, no charge?
Potassium (K) is this type of element.
What is a metal?
One consideration of GREEN CHEMISTRY.
What is cost, waste, by-product use, pollution, greenhouse gas emissions, efficiency, sustainability, renewability, etc. We will discuss this question.
A state change (like melting or freezing) indicates this type of change.
What is physical?
Particles are in constant ____________.
What is motion?
The number of protons, electrons, and neutrons in an atom of Lithium.
What are 3 protons, 3 electrons, and 4 neutrons?
Chlorine (Cl) is this type of element.
What is a non-metal?
Fill in the blanks:
Lithium has a _________ energy density which makes it a _________ choice for electric vehicle batteries.
What is high, good?
Mixing baking soda and vinegar is this type of change. Explain why.
What is chemical? Fizzing/Bubbling/gas produced.
When temperature increases, particles move _____________.
What is faster?
Draw a Bohr diagram for an atom of hydrogen.
1 proton and 0 neutrons in the centre nucleus. 1 electron in the first electron shell.
If an element is shiny, it is likely this type of element.
What is a metal?
Opening a lithium mine near Red Rock will require new housing to be built for new workers, providing new living options for people who live there. This would be a ____________ impact.
What is social? (and positive)
When a lake freezes over in winter it would be this type of change.
What is physical?
When energy decreases, particles move _________.
What is slower/less?
Draw a Bohr diagram for an atom of Nitrogen.
7 protons and 7 neutrons in the centre nucleus. 7 electrons total - 2 in the first electron shell, 5 in the second electron shell.
If an element does not conduct electricity and heat well, it is likely this type of element.
What is a non-metal?
New job opportunities that come with new industry development is this type of impact.
What is economic? (and positive)
What is colour change (new)?
What is odour/smell produced?
What is new substance produced (gas, etc)?
What is a fire/explosion occuring?
Particles have a force of _______________ between them.
What is attraction?
Draw a Bohr diagram for an atom of fluorine.
9 protons and 10 neutrons in the centre nucleus. 9 electrons total - 2 in the first shell, 7 in the second shell.
Workers who work on electrical lines wear clothing and protective equipment made of ___________.
What are non-metals?
Mining lithium can disrupt land, wildlife habitats, and require deforestation in the area, which is this type of impact.
What is environmental? (and negative).