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Chapter 10: Periodic Table Flashcards | StudBud
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Chapter 10: Periodic Table
Chapter 10: Periodic Table
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1
Halogens are found in group ____.
1
17
2
18
2
Metals are ___________ and can stretched in wire.
ductile
hard
brittle
malleable
3
What is the symbol of Sodium and what group does it belong to?
So, nonmetal
Na, metal
Na, nonmetal
So, metal
4
Mendeleev arranged his first table
atomic mass
atomic number
size and color
density
5
Gaps were left in the first PT to leave room for new discoveries.
True
False
6
Group 2 elements have 2 electrons in their outer level.
True
False
7
Silicon can be found in __________.
air
wood
steel
computers
8
Na and K are both in Group 1, Alkali Metals.
True
False
9
Metals conduct _____ and ________.
electricity, energy
heat, electricity
heat, solids
10
Most of the known elements are non-metals.
True
False
11
Group 1 metals are ___________ in water.
fizzy
violently reactive
unreactive
12
There are __________groups in the PT.
3
18
13
12
13
Groups 3-12 are called ____________.
noble gases
transition metals
alkali metals
halogens
14
Semi-conductors are metalloids and have properties of metal and non-metals. Which one is a metalloid?
Na
C
Si
U
15
Patterns lie within the PT. What trend does being metallic have?
Metallic properties decrease L to R
metallic properties increase L to R
16
What side of the PT is Carbon (C) found on?
middle
right
left
17
Mendeleev arranged elements by
chemical activity
size and shape
physical and chemical properties
18
Moseley discovered the ________ for each element.
atomic mass
# protons
color
atomic #
19
What group is Alkali Metals?
group 13
group 2
group 1
group 3
20
Neighbors on the PT vary
by color
by #protons
by mass #
by size
21
How is the PT arranged?
# protons
# electrons
year of discovery
# neutrons
