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Atomic Structure and the Periodic Table Flashcards | StudBud
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Atomic Structure and the Periodic Table
Atomic Structure and the Periodic Table
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1
Name this isotope
Polonium-94
Polonium-238
Plutonium-238
Plutonium-94
2
Mendeleev created the first periodic table by arranging the elements in order of _____.
increasing atomic mass
increasing melting points and densities
increasing atomic number
decreasing atomic mass
3
Malleable means that...
It is lightweight
It can be stretched into wires
It conducts heat and/or electricity
It can be hammered into shape
4
The Periodic Table ROW Number equals ...
Number of electrons in outermost shell
Number of energy orbitals
Number of electrons shell can hold
Number of protons
5
The nonmetal that is liquid at room temperature
Carbon
Helium
Bromine
Mercury
6
Group 2 is called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
7
The atomic mass is
The # of protons + the number of neutrons an element has
The average mass of all the isotopes of an element
The weighted average mass of all the isotopes of an element
The # of protons and electrons an element has
8
Metal that is liquid at room temperature.
Sulphur
Aluminium
Mercury
Iron
9
how many valence electrons in halogens
8
6
5
7
10
The positively charged subatomic particle
Neutron
Proton
Electron
Nucleus
11
An anion forms when
An atom goes through an ionic bond
An atom gains electrons
An atom loses electrons
An atom remains stable
12
Which of the following elements are in the Chalcogens group?
All of the Above
Sulfur
Oxygen
Polonium
13
The subatomic particle that determines the reactivity of an atom
Neutron
Proton
Nucleus
Electron
14
Ductile means
Can be shaped into wire
The object is a good conductor of electricity
Can be flattened into sheets
Good conductor of heat
15
The subatomic particle that identifies the element
Nucleus
Proton
Neutron
Electron
16
Isotopes
are atoms of the same element that have
different
number of what?
Electrons
Neutrons
Energy levels
Protons
17
Describe the nuclear symbol notation.
the atomic number is 12 and the mass number is 18
the mass number is 6 and the atomic number is 12
the mass number is 12 and the atomic number is 6
the atomic number is 18 and the mass number is 6
18
Transition metals are located where on the periodic table?
Groups 3-12
Groups 1-2 and 13-18
Periods 1-5
Periods 6 and 7
19
Elements in group 17 are called ____________.
noble gases
halogens
alkaline earth metals
alkali metals
20
Why don't the Noble Gases form ions?
They have a positive charge.
The do form ions.
Their valence shell is already full of electrons.
The bond only to hydrogen.
21
Metals are located
right of the stair step line
On the stair step line
left of the stair step line
Periods 3-7
22
Oxygen gains two electrons because
it likes electrons
they fill the outer shell and make it more stable
it is electron hungry
it needs electrons to be fulfilled
23
What is the charge of a cation?
0
-
+
24
The negatively charged subatomic particle
Electron
Neutron
Proton
Nucleus
25
Why are lanthanides and actinides on the bottom of the periodic table?
To save space
The are radioactive.
They're the best.
They are new elements.
26
Elements with 1 valence electron are
non-reactive
normal
highly reactive
unbalanced
27
How many neutrons are in this isotope of Magnesium?
25
12
37
13
28
What answer represents the mass number?
He
2
6
4
29
An element that loses one electron will become what type of ion?
bonded
anion
atom
cation
30
Nonmetals are located...
on the left side of the stair step line
periods 6 and 7
along the stair step line
on the right side of the stair step line
31
Which is a brittle, yellow nonmetal with a strong smell?
Silicon
Copper
Sulfur
Magnesium
32
Which group loses 2 electrons?
Halogens
Noble Gases
Alkali Metals
Alkaline Earth Metals
33
Main group elements include
groups 1 & 2 and 13-18
groups 3-12
groups 1 & 2
period 4
34
Group 18 is called
Noble gases
Non-metals
Metalloids
Halogens
35
Valence electrons are
The electrons in the innermost level.
The electrons in the outermost level.
The total number of electrons in all levels.
36
Group One elements are called
Noble Gases
Halogens
Alkali Metals
Transition Metals
37
The overall charge of the nucleus is
Negative
Positive
Neutral
