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Unit 2 Matter Assessment: Atoms, Elements, Per Table Flashcards | StudBud
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Unit 2 Matter Assessment: Atoms, Elements, Per Table
Unit 2 Matter Assessment: Atoms, Elements, Per Table
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Periodic Table Basics
Flashcards
24 cards
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Questions
24
Answers
1
What group is magnesium in?
2
8
13
3
2
What do elements in the same group have in common?
Similar properties/reactivity, and the same # of valence e-
Same chemical reactions
Same compounds formed
Same number of shells
3
What do elements in the same period have in common?
Same reactivity
Similar properties
Same number of valence electrons
Same number of shells
4
Where are the metals located on the periodic table? The non-metals?
Metals-middle Non-metals top right side only
Metals-left side and middle Non-metals-right and top right
Metals- middle Non-metals-left side
Metals-right side Non-metals-left side
5
What does the pattern in the periods of the Periodic Table indicate?
It shows the number of valence electrons
It shows 3 chlorine and 4 hydrogen
A pattern of compounds formed by each element in that period
It shows how many shells are in each atom
6
What does a chemical formula tell you?
The way atoms are put together
The elements in a compound + how many atoms of each element
How to draw a molecule
What properties a compound has
7
What atomic particle has the Power to determine what element the atom is?
Electron
Proton
Neutron
Ion
8
How can you calculate the number of neutrons in an atom?
Count the number of electrons
Use the atomic number
Subtract the atomic number from the mass number
It's always the same as the # of protons
9
What does the atomic mass (mass number) tell you?
How many protons an element has
How many electrons an element has
How the charge on the ion will change
How many protons and neutrons an element has
10
How do you know the number of protons in an atom?
It's the same as the mass number
It's the same as the average atomic mass
It's the same as the neutrons
It's the same as the atomic number
11
What are the elements that touch the staircase called?
transition metals
halogens
alkali earth metals
metalloids or semi-metals
12
What pattern is repeated in every period of the Periodic Table?
Cl, Cl2, Cl3, H4, H3, H2, H, non-reactive
Cl, Cl2, Cl3, Cl4, H5, H6, H7, H8
Cl, Cl2, Cl3, Cl4, H3, H2, H1, H0
Cl, Cl2, Cl3, H4, H5, H6, H7,, non-reactive
13
Which element, calcium or selenium, has more protons?
calcium
they don't have any protons
they have the same number of protons
selenium
14
What is the English name for this chemical formula? Pb(NO
3
)
2
Phosphorus hydroxide
Potassium nitrate
lead nitrate
Copper nitrate
15
Which element has 3 valence electrons?
Au, Gold
Astitine
Aluminum
Arsenic
16
How many lead, nitrogen, and oxygen atoms in Pb(NO
3
)
2
?
1 Pb, 2 N, 3 Ox
2 Pb, 1 N, 6 Ox
2 Pb, 2 N, 6 Ox
1 Pb, 2 N, 6 Ox
17
What is the charge on an electron?
sometimes positive, sometimes negative
positive
neutral
negative
18
What are the three particles that make up an atom?
protons, neutrons, ions
Ions, electrons, photons
protons, neutrons, electrons
Neutrons, electrons, ions
19
Elements in the same group share:
similar properties
similar reactivities
same number of valence electrons
All of the above are true!
20
What is the main organizer of the periodic table?
Atomic number: from smallest to biggest
Number of neutrons
When each element was discovered
Atomic mass: from biggest to smallest
21
Which element has the larger atomic radius (has more volume), beryllium or potassium?
They have the same sized radius
Potassium
They don't have any radius.
Beryllium
22
What is the correct chemical formula for copper sulfate?
CuO
CuS
CuSO4
CuSO
23
What things to you need to know in order to draw a picture of an atom?
# protons, # neutrons, # shells, # e-, #val e-, # core e-
# of protons, neutrons, shells, nucleus, ions, isotopes
# protons and # neutrons only
# electrons, # val e-, # core e-
24
How many hydrogen and oxygen in water?
1 H, 1 Ox
2 H, 1 Ox
2 H, 2 O
1 H, 2 Ox
