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yr 9 Chemistry and atoms Flashcards | StudBud
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yr 9 Chemistry and atoms
yr 9 Chemistry and atoms
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Intro to periodic table
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
The fixed circular paths around the nucleus arecalled_________.
orbitals
mesons
nucleons
orbits
2
How many groups are on the periodic table?
18
17
20
19
3
What is a characteristic of a metal?
don’t explode in water.
good conductors of electricity
dull
brittle
4
What is the symbol of Manganese?
Mn
M
Me
Mg
5
The nucleus of an atom contains
Neutrons and protons
Protons & electrons
Electrons
Protons
6
How is the periodic table ordered?
A. Metals to gases
A. Gases to metals
A. Heaviest to lightest
A. Lightest to heaviest
7
What are Lanthanides and Actinides?
Natural noble gases
Man made metals
A. Man made elements
Alkali metals
8
Hydrogen has a full outer shell.
true
false
9
Transition metals conduct better than normal metals?
True
False
10
What are properties of transition metals?
combination of all 3
conducts electricity
shiny
brittle
11
Are all non-metals gases?
No there are gases and liquids
Yes there is only gas,
There isn’t actually any gases
No there solid gases and liquids,
12
Group 18 is called what?
halogens
alkali metals
transition metals
noble gases
13
How many electrons does Oxygen (8) have in its outer shell?
2
6
8
0
14
The mass of the atom is determined by________.
electrons
protons
electron and neutrons
neutron and proton
15
Almost the entire mass of an atom is concentratedin the__________.
nucleus
neutrons
electrons
protons
16
The electron configuration of sodium (Na) 11 is
8,2,1
2,8,1
2,2,8
1,8,2
17
What is the symbol for potassium?
Po
K
P
Pk
18
Helium has a full outer shell.
true
false
19
Kr is the symbol for
Koffee
Calcium
Krypton
Potassium
20
Noble gases are gases that have royal blood within them?
True
False
