Periodic Table
Which particle determines the identity of an element?
Protons
Which two subatomic particles are found inside a nucleus of an atom?
Protons and Neutrons
Would lemon juice turn litmus paper red?
Yes
R - What is the Oxidation number of nitrogen in a nitrate ion? (NO3)
E - Which type of electrochemical cell uses an outside energy source?
R - +5
E - Electrolytic cell
What is the strongest and weakest forms of radiation?
The strongest is gamma and the weakest is alpha
What happens to atomic radius of elements when moving from left to right through periods?
It Decreases
If a neutral atom with an atomic number of 11 has 23 protons, how many neutrons should it have?
12
What is the average PH number of a base?
13
R - What type of reaction is the following: Fe + Na = FeNa?
E - What is the purpose of the wire in a voltaic cell?
R - Synthesis
E - To carry electrons one way
How does temperature affect half life?
It doesn't, half life cannot be affected
Which group on the periodic table contains highly reactive non-metals? (Halides)
Group 17
How do you gain energy from moving electron shells?
From moving in from the outermost shell, to the earlier shells
What is an electrolyte?
A substance that when dissolved in water, conducts electricity, and produces ions
R - What always stays the same during a redox reaction?
E - What is the purpose of the salt bridge?
R - Number of protons (atoms)
E - To allow the flow of ions both ways
What nuclear process involves splitting a large nucleus into 2 smaller ones?
Fission
What do all elements in the same group have in common?
Valence Electrons
If Oxygen - 16 and Oxygen - 18 are isotopes, what makes them different?
Oxygen - 18 has more neutrons
What are some products of a neutralization reaction?
A salt and water
R - What happens so an oxidizing agent when it undergoes a redox reaction?
E - What process happens in the anode?
R - It gains electrons and is reduced
E - Oxidization
What is transmutation?
It is the making of a new element, from another element, by changing the number of subatomic particles
What do you call an atom that loses electrons and becomes a positive ion?
Cation
A neutral chlorine atom gains one electron to form an ion, what is the new number of electrons in it?
18
Which indicator based off the song, turns pink?
Phenolphthalein
R - What is the oxidization number of Manganese in MnO4?
E - How can you tell the difference between an electrolytic cell and a voltaic cell?
R - + 7
E - An electrolytic cell can be identified by an outside energy source like a battery, while a voltaic cell can be recognized by having 2 chambers, a salt bridge, and a voltmeter.
What fraction remains of Carbon 14 (C-14) after 22860 years?
1/16