Chemistry 1
what are the three types of nuclear decay
Alpha beta gamma
True or false. Atoms cannot be created or destroyed
True
What is hydrogen's atomic number
1
Should you drink and drive?
No
Who jumped of the top of Paris stadium during the closing ceremony?
Tom Cruise
What is a chemical reaction?
when two or more substances react with each other to produce atleast one new substance
Name two factor that affects the rate of reactions
temp, surface area, concentration, agitation, catalyst , pressure
When are atoms the most stable?
When they have a full outer shell of electrons
Which is the largest state by population in Australia?
NSW
By how much seconds, did Noah Lyles win by?
5000 of a second (1/5000)
whats the chemical symbol for Gold
Au
WHat type of nuclear reaction occurs inside a reactor?
Nuclear FIssion
Atoms obtain a full outer shell by bonding. What are the three types of bonding.
Metallic, Ionic, Covalent
According to Forbes, who is the current richest person in the world
ElonMusk
How many gold medals did Australia win?
18
List all the evidences of a chemical reaction
temp change, gas form, precipitation formed, colour change, smell, light, sound, heat
What does nuclear radiation mean?
Nuclear radiation refers to the particles and photons emitted during reactions(fission, fusion nuclear decay) that involve the nucleus of an atom.
The following descirbes which bonding:
Metal atoms donate electrons to non-metal atoms fomring charged ions
Ionic Bonding
Who's the currents NT chief minister?
Lia Finnochiaro
In which sport was there an 11 year old athlete competing in?
Skateboarding
symbols are used to indicate the state of matter in a chemical equation. What symbol is used to indicate something is dissolved in water?
(aq)
Nuclear decay is measured in half life. What does this mean?
What is a covalent bond
Chemical bond formed by the sharing of one or more electron pairs between two atoms
in which year did the nuclear reacotr in Chernobyl explode
1986
Who dunked on Lebron James in the USA vs France Gold medal match?
Guerschon Yabusele