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7.1
7.2
7.4
7.6
7.8
100
K is the chemical symbol for potassium and it contains 1 valence electron
What is K and how many valence electrons does it have?
100
physical and chemical
What are 2 types of properties?
100
J.J Thomson
Who discovered the electron?
100
Ionization energy is the amount of energy required to remove an electron from a gaseous atom at a ground state
What is ionization energy?
100
- ide
Binary compounds always end with this suffix (except for a few)
200
Dimitri Mendeleev is credited for making the periodic table
Who made the periodic table?
200
physical- color, density, luster, odor, malleability chemical- change in odor, change in color, reaction to HCl
Whats an example of a physical and chemical property?
200
He ran the gold foil experiment
What experiment did Rutherford run in order to discover the atomic nucleus?
200
s,p,d,f
What are the 4 letters that designate each sublevel?
200
covalent bonds
All non metallic elements whose atoms have 4 or more valence electrons can form these bonds
300
Group 1 and 2 usually bond with groups 16 and 17
What groups do group 1 and 2 usually bond with?
300
He lived from 1843-1907
When did Dimitri Mendeleev live?
300
New Zealand
Where was Ernest Rutherford born?
300
stability
What is an important feature for all matter?
300
give up
Atoms with a small amount of electrons _______ electrons
400
Ionic radius, reactivity in periods, ionization energy and reactivity in groups
What are all 4 ways the periodic table is organized?
400
"What is the relationship of the elements to one another and to the chemical families to which they belong?"
When creating the periodic table Dimitri Mendeleev wanted this question answered. What is this question?
400
9.109x10-28 g
What is the mass of an electron?
400
periodic law
When elements are arranged according to their atomic numbers a pattern emerges in which similar properties occur regularly. This is called...
400
2 hydrogen atoms and one oxygen atom
What does water contain?
500
H-hydrogen; Li-lithium; Na-sodium; K-potassium; Rb-rubidium; Cs-cesium; Fr-francium
What are all the elements in group 1 of the periodic table?
500
A characteristic that a substance undergoes in a chemical reaction that produces new substance(s)
What is the definition of a chemical property?
500
k= 9.0x 10-9 N m-2/C-2
What is coulombs constant?
500
excited
What word is used to describe an electron that has been promoted to a higher energy level?
500
noble gas
The sharing of electrons (covalent bonds) results in a situation in which each atom is associated with 8 valence electrons as is a characteristic of a ________ ____