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Q 1/19
Score 0
___have a positive charge and are located in the nucleus of an atom.
30
Neutrons
Electrons
Nucleus
Protons
Q 2/19
Score 0
___ have no charge and are located in the nucleus of an atom.
30
Neutrons
Nucleus
Protons
Electrons
19 questions
Q.
___have a positive charge and are located in the nucleus of an atom.
1
30 sec
Q.
___ have no charge and are located in the nucleus of an atom.
2
30 sec
Q.
___ have a negative charge and are located outside the nucleus of an atom.
3
30 sec
Q.
___ is a chart made up of elements.
4
30 sec
Q.
___ is a substance that cannot be broken down into simpler substances.
5
30 sec
Q.
By 1830, scientists had isolated and named ___ different elements.
6
30 sec
Q.
___ published the 1st periodic table in 1869.
7
30 sec
Q.
Mendeleev and Moseley both left gaps for the missing elements that were still undiscovered on their periodic tables.
8
30 sec
Q.
In the early 1800's Henry Moseley arranged the elements on the periodic table according to increasing atomic mass rather than decreasing atomic number.
9
30 sec
Q.
Today there are ___ confirmed elements.
10
30 sec
Q.
___ is the top number in an element box.
11
30 sec
Q.
___ is the bottom number in an element box.
12
30 sec
Q.
Today's periodic table consists of
13
30 sec
Q.
___ are located on the left side of the periodic table, except hydrogen.
14
30 sec
Q.
___ are located on the right side of the periodic table, plus hydrogen.
15
30 sec
Q.
___ means capable of being hammered, pounded, or rolled into sheets
16
30 sec
Q.
___ means capable of being drawn or stretched into wires
17
30 sec
Q.
___ means to reflect light well.
18
30 sec
Q.
Metals are good conductors of heat and electricity.
