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Periodic Table of the Elements Flashcards | StudBud
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Periodic Table of the Elements
Periodic Table of the Elements
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Periodic Table
Flashcards
30 cards
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30
Answers
1
How did chemists change Mendeleev's periodic table?
The included chemical properties like bonding power.
They included physical properties like density.
They used atomic mass instead of atomic number.
The used atomic number instead of atomic mass.
2
In the periodic table, the most reactive elements are found in _____.
Group 1, the first column on left
Groups 13-16 in the center
Periods 6 & 7 at the bottom
Period 1, the first row on the top
3
Which of the following is a property of a NON metal?
Brittle
Shiny
Ductile
Malleable
4
Which scientist said that electrons circle the nucleus in specific shells?
Rutherford
Rutherford
Dalton
Bohr
5
A material is ductile if it _____.
is a mixture of metal with at least one other element
can be hammered or rolled into flat sheets
can be pulled or drawn into a long wire
can transfer heat or electricity to another metal
6
Who discovered the proton?
Bohr
Chadwick
Democritus
Rutherford
7
The elements in a column of the periodic table ____.
have the same atomic mass
have similar properties
have similar chemical symbols
are in the same period
8
How many electrons does this element have?
108
61
60
47
9
What is unique about noble gases?
Are non-reactive
Don't form compounds
form salts
exist as solid elements
10
____________ and _____________ are found in the nucleus of an atom.
Protons and Electrons
Protons and Neutrons
Neutrons and Electrons
Protons and Valence Electrons
11
Electrons found on the outermost shell are called _______________________.
Outermost Electrons
Lewis Electrons
Valence Electrons
3rd Energy Level Electrons
12
Which of the following scientists inferred that an atom's positive charge is in the nucleus?
Ernest Rutherford
John Dalton
Niels Bohr
J.J. Thompson
13
Most of an atom's mass is in its ___________________.
Shells
Electron Cloud
Protons
Nucleus
14
Elements on the right side of the periodic table are called ___________ and are ___________.
Noble Gases, least reactive
Noble Gases, not reactive
Halogens, least reactive
Halogens, most reactive
15
Who discovered the electron?
Democritus
Thomson
Rutherford
Bohr
16
The atomic mass tells you how many _______________ are in an atom.
Neutrons
Protons and Neutrons
Protons
Protons and Electrons
17
How many valence electrons does this element have?
16
7
2
6
18
Which of the following is NOT a property common to non-metals?
reactive with other elements
brittle
dull
conduct electricity easily
19
What information in the periodic table indicates the number of protons in an atom?
the position of the element in the column
the element's atomic number
the element's atomic mass
the element's chemical symbol
20
What color are the non-metals?
Blue
Purple
Lime green
21
Which group of elements share characteristics with both metals and non-metals?
lanthanides
salts
halogens
metalloids
22
What is shown at the top of each box in the periodic table?
Atomic Name
Atomic Number
Atomic Symbol
Atomic Mass
23
Which of the following statements about transition metals is true?
They include metals such as gold, silver and copper
They are so soft they can be cut with a knife
They are the most reactive of all types of metals
They are never found uncombined in nature
24
The most reactive elements on the Periodic Table.
Nobel Gases
Transition Metals
Akaline Earth Metals
Alkali Metals
25
How does the reactivity of elements change as you move from left to right on the table?
Decreases reactivity
Increases Reactivity
Doesn't change
26
Sodium has 11 protons, 12 neutrons and 11 electrons. What is it's mass number?
22
23
11
12
27
A material can be malleable if it can ______.
be molded into different shapes by cooling it.
be molded into different shapes by heating it.
pulled into different shapes
pulled into wires.
28
Mendeleev created the first periodic table by arranging the elements in order of _____.
increasing atomic mass
decreasing atomic mass
increasing melting points and densities
increasing atomic number
29
What charge does an electron have and where is it found in an atom?
Positive, in shells
Neutral, in nucleus
Negative, in shells
Negative, in nucleus
30
This element has 26 protons
Magnesium
Copper
Aluminum
Iron
