Properties/Changes
Honey has a high viscosity and has a yellow-ish/amber colour.
These properties are describing the _________ _______ of honey.
What are physical properties?
Name the three main subatomic particles.
What are protons, electrons, and neutrons.
An anion is an ion that has ________ electrons and has a _______ charge.
What is gained; negative.
What kinds of elements make up an ionic compound?
What are metals and non-metals
A vertical column on the periodic table is called...
What is a family or group.
The ability of a substance to be flammable or toxic is describing its ___________ ___________.
What is a chemical property?
What determines the identity of an atom/element?
What are the number of protons
An element wants to form an ion to...
What is to complete their outer shell so that they can become stable.
What type of elements form molecular compounds?
What are two or more non-metals?
Halogens have this many valence electrons.
What is 7 valence electrons.
What are two pieces of evidence you can use to determine if a chemical change has occurred?
What are:
bubbles/gas production, precipitate formed, colour change, temperature change, light production
An atom has 11 protons. What element is this, and how many electrons and neutrons does it have?
What is Sodium? Electrons = 11, Neutrons = 12
Neon doesn't typically form an ion due to the fact that...
What is it is already stable with a full outer shell.
How many atoms of Carbon are found in CCl4?
What is 1?
Why do calcium and magnesium form ions with a +2 charge?
Both are in Group 2 (alkaline earth metals) and have two valence electrons that they typically lose.
There are two white, powdery substances that seem almost identical. What kind of properties can we use to distinguish them from one another? Give two examples of these properties.
What are characteristic physical properties? Examples: solubility, density, melting point, and boiling point
An atom has an atomic number of 17 and a mass number of 35. How many protons, neutrons, and electrons does it have?
What are 17 protons, 18 neutrons, and 17 electrons.
A neutral atom has 16 electrons. It gains two electrons. Identify the element, its final number of electrons, and its ion charge.
What is Sulfur, 18 e-, S2-
An ionic compound is made from calcium and nitrogen. Determine the charge of each ion and write the correct chemical formula.
What is Ca²⁺ and N³⁻; Ca₃N₂
As we move across a period in the Periodic Table, we typically see this trend.
What is elements gain one valence electron, but the amount of shells stays the same.
A candle burns and produces heat, light, carbon dioxide, and water vapour. Identify one physical change and one chemical change occurring.
What is wax melting (physical), and CO2 (gas) produced (chemical)
Which two subatomic particles contribute the vast majority of the overall mass of an atom?
What are protons and neutrons.
What is the name of the halogen that has 10 electrons when it becomes an ion?
What is Fluorine?
What is the chemical formula for Calcium Phosphide?
What is Ca3P2
An unknown element is shiny, conducts electricity, and has one valence electron. Which general category does it belong to?
What are metals, or specifically, alkali metals.