Atoms are composed on these three subatomic particles.
What are electrons, neutrons and protons.
100
In the valence shells of atoms in a stable compound, this is what we will notice.
What is a full valence shell?
100
An _______ is an atom that does NOT have a neutral charge
What is an ion?
200
A mass of the SAME atom is called ________
What is element?
200
Atoms are mostly made up of empty ________; therefore, matter is mostly empty space.
What is space?
200
What would happen if Carbon lost a PROTON?
The number of protons determines the element. If carbon loses an element, the atom would then become BORON.
200
In the compound C6H12O6, there are ___ oxygen atoms.
What is 6?
200
Elements in the same family have the same number of this.
What are valence electrons?
300
Different atoms chemically bonded together
What is compound?
300
Provide an example of something that is not matter.
What is energy, vacuum (space)
300
This element has 14 protons and neutrons.
What is NITROGEN.
300
A Lewis dot diagram shows the chemical symbol of an element, and also this.
What is the number of valence electrons?
300
In a neutral atom, there are the same number of _______ and _______.
What are protons and electrons?
400
A mix of chemical compounds
What is mixture?
400
Explain why all matter is not found on the Periodic Table
Not all matter is in the form of an element. Matter can be found as a mixture or in chemical compounds
400
This element has 10 protons.
What is NEON?
400
This is why the noble gasses are stable.
Noble gasses have full valence shells.
400
This is the difference between ionic and covalent bonds.
Ionic - non-metal and a metal
- steal/gain electrons
Covalent - metal and a metal
- share electrons
500
Three signs of a chemical reaction.
What are colour change, gas formation, heat release/absorption, irreversible change, odour... (any three)
500
Explain why matter is found in different phases: gas, liquid, and solid.
(Students must explain particle theory of matter)
500
Oxygen suddenly gains 2 electrons in its valence shell. This will be its new charge.
What is negative 2? (2-)
500
To the right of the staircase on the Periodic Table, we find the __________, while on the left, we find the _________.
What are NON-METALS and METALS.
500
CH4 is a stable compound that has 1 Carbon and 4 Hydrogen atoms. In this compound, Carbon has ____ valence electrons, while hydrogen has ______ valence electrons.