What is an example of a compound, element and mixture?
100
The number of unpaired electrons is the maximum and in the lowest energy state.
What is Hund's rule?
100
1s2 2s2 2p2
What is the electron configuration of carbon?
100
That matter can not be created nor destroyed. mass of reactants equals mass of products.
What is the Law of Conservation of Mass?
200
1. The light was bright and yellow in color.
2. Every action has an equal and opposite reaction.
3. I think the reason the circuit conducted electricity was because it was closed and had a power source.
What is an observation, a law and a theory?
200
The rows across the periodic table. The columns across the periodic table.
What is a period and a group.
200
He shot alpha particles at a thin piece of gold, most went straight through, some bounced back. He was able to conclude that atoms are made of mostly dead space with a small dense nucleus in the centre.
What is Rutherford's experiment?
200
The atoms get smaller. The atoms get bigger.
What is the trend in terms of atom size as you move across a period? and down a group?
200
The sky is blue and I weigh 400 pounds.
What is a qualitative observation and a quantitative observation?
300
3 significant figures.
What is the number of significant figures in 0.000567?
300
Shiny, lustrous, ductile, good conductors of heat and electricity.
What is the properties of metals?
300
Mendeleev
What is the most important Chemist associated with the Periodic Table?
300
The electronegatively increases. The electronegativity decreases.
What is the trend in electronegativity as you move across a period? down a group?
300
Vinegar and chicken noodle soup.
What is a heterogenous mixture and a homogenous mixture?
400
Copper, Silver (from the Zinc), Bronze (from the copper and zinc combining).
What is the three colors in the copper penny lab.
400
s, p, d and f.
What is the four orbital types?
400
So that you start and finish with the same masses.
What is the reason equations are balances?
400
1s2 2s2 2p6 3s2
What is magnesiums electron configuration?
400
Evaporates or boils
What is it called when a liquid becomes a gas?
500
9 significant figures.
What is the number of significant figures in 230004000?
500
2, 8, 18.
What is the maximum numbers of electrons in the first three shells?
500
1s2 2s1
What is Lithiums electron configuration?
500
Gas
What is the state of matter where the particles move the quickest and are furthermost apart?