The Atom
What is the name for the positively charged particles in the nucleus of an atom?
Protons
What are groups of the Periodic Table?
The vertical columns of the Periodic Table (going down)
What are the three main states of matter?
Provide one example of a metal on the Periodic Table.
Miss Calitz to check answers (too many possibilities)
What is a chemical reaction?
A process where one or more substances (reactants) transform into entirely new substances (products) by breaking and forming chemical bonds
What is the name for the negatively charged particles that surround the nucleus of an atom in shells?
Electrons
What are periods of the Periodic Table?
The horizontal rows of the Periodic Table
What is the fourth, lesser known state of matter?
Plasma
What are two properties of metals?
Any 2 of: High melting/boiling points, shiny, malleable, ductile, dense, good conductors of heat and electricity
What are the two types of chemical reactions your learnt about in year 8? (Hint: Heat being released or absorbed)
Exothermic and Endothermic
What is the name for the neutral particles in the nucleus of an atom?
Neutrons
What is the atomic number of sodium?
11
What is a solid changing into a liquid called?
Melting
What does ductile mean?
Able to be drawn out into thin wires without breaking.
During which type of chemical reaction is heat absorbed?
Endothermic
Draw the structure of a Lithium atom on the whiteboard.
3 protons and 4 neutrons in the nucleus
3 electrons surrounding the nucleus
What is the average mass number of silver?
107.87
What is a liquid changing into a gas called?
Boiling
What does malleable mean?
Able to be bent/moulded into shapes without breaking.
During which type of chemical reaction is heat released?
Exothermic
What is an isotope?
An atom of the same element with a different number of neutrons in its structure.
In which group and period is titanium located?
Group 4, Period 4
What is a solid changing straight into a gas called?
What is required for a substance to be able to conduct electrical charges?
Freely moving charged particles.
Write on the whiteboard the correct word equation for the below chemical reaction:
Sodium chloride and water is formed when a solution of sodium hydroxide and a solution of hydrochloric acid are mixed together.
Sodium hydroxide + hydrochloric acid --> Sodium chloride + water