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Intro to Chem. Flashcards | StudBud
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Intro to Chem.
Intro to Chem.
20 terms
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1
In the periodic table elements are arranged in the periodic table in order of increasing atomic number.
False
True
2
What was the first element to be chemically discovered was…
hydrogen
phosphorus
tin
3
What does the atomic number number repersent?
the number of protons in the nucleus of an atom of the element.
the year the element was dicovered
4
Which elements are the most reactive?
copper and silver
Cesium and Fluorine
Potasium
5
Ernest Rutherford discovered the nucleus in 1911
True
False
6
What is inorganic compound?
chemical substances that lack carbon hydrogen and carbon covalent bonds.
object on the shelves that do not have the organic label on them.
7
Who discovered the electron in 1897?
Albert Einstein
J.J Thomson
Louis Pasteur
8
Atoms are fundamental bulging blocks of matter, forming the basis of all substances
False
True
9
Chemistry is the science that studies the composition,structure,propetries, and reactions of matter.
True
False
10
What causes chemical reactivity?
rubbing two things together like electricity
valence electrons
the contains weak bonds
11
Ph scale is a measure of acidity or basicity of a solution, ranging from 0-14
False
True
12
Matter is held together by fundamental forces
False
True
13
Do atoms touch each other?
yes
Sometimes it depends on the size
no
14
What are the three main types of subatomic particles?
electrons
protons
nuetrons
15
Who invented the first periodic table?
Tesla
Dmitri Mendeleev
16
There 118 elements on the modern periodic table.
False
True
17
Matter is formed by fundemental forces
True
False
18
What is organic compound?
contain little or no carbon
A large group of chemical compounds that contain carbon atoms.
19
Hydrocarbons are organic compounds that consist only of carbon and hydrogen atoms
False
True
20
What are different types of chemical bonds?
metallic bonds
covalent bonds
ionic bonds
