Show:
Terms
The periodic table
Electrons
Protons
Misc.
100
A body into which other bodies may be anylised
What is elements
100
what are the vertical coloms called a.Families b.Groups c.both
c.both
100
To satisfy the octet rule how many electrons will be lost or gained for As
gain 3
100
what is the mass of one proton a.1 b.2 c.3
a.1
100
Who discovered the electron?
J.J. Thomson
200
the property of a substance does not change the chemical identity of the substance
What is physical property
200
who created the periodic table a.Mendeleev b.J.J Thomson c. Niels Bohr
a.Mendeleev
200
To satisfy the octet rule how many electrons will be lost or gained for Mg
lose 3
200
what is the charge of a proton a.5 b.3 c.1
c.1
200
is the strong force greater at shorter or further distances?
short distaces
300
the property that is displayed when matter undergoes a change in composition
What is chemical property
300
what year was the table created in a.1851 b.1878 c.1869
c.1869
300
To satisfy the octet rule how many electrons will be lost or gained for Ir
+/- 9
300
How does a proton effect an element?
it changes its atomic number
300
what emission spits out packets of electromagnetic radiation
gamma emission
400
an atom that has an unstable nucleus and will emit alpha, positron or beta particles in order to achieve a more stable nucleus
What is Radioactive
400
How many periods does the table have a.8 b.7 c.18
b.7
400
How many electrons can the d level hold
10
400
How many protons are in Ar
18
400
im shiny, silver and am a good conductor of silver Hint: im used to cover stuff in the kitchen Who am i
Aluminum
500
atoms of the same element with different masses due to the different number of neutrons
What is isotope
500
what are the most nonreactive elements on the table a.noble gasses b.alkaline earth metals c.transition metal
a. noble gasses
500
To satisfy the octet rule how many electrons will be lost or gained for Y
lose 3
500
How many protons does U have a.92 b.238.0289 c.300
a.92
500
who's experiment shot positively charged alpha particles in to a gold sheet
Ernest Rutherford