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KS3 Atoms, Elements & the Periodic Table Flashcards | StudBud
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KS3 Atoms, Elements & the Periodic Table
KS3 Atoms, Elements & the Periodic Table
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1
Which 2 elements make up sodium chloride?
sodium and chlorate
soda and chlorine
sodium and chlorine
sodium and chloride
2
What are the properties of elements in group 8/0?
unreactive solid
unreactive liquids
reactive solids
unreactive gases
3
What are rows in the periodic table called?
elements
periods
groups
molecules
4
What is a compound?
2 or more molecules joined together
2 or more particles mixed together
2 or more atoms joined together
2 or more elements joined together
5
What charge does an electron have?
positive
electrical
negative
neutral (no charge)
6
Where are electrons found in a atom?
orbiting the nucleus
in the nucleus
outside the atom
paired with protons
7
What charge does a neutron have?
neutral (no charge)
positive
negative
electrical
8
What the chemical Symbol for potassium?
Po
Na
K
P
9
What is the relative mass of an electron?
0
negligible
+1
1
10
What is the relative mass of an electron?
0
1
-1
negligible
11
What is the name of the compound MgO?
magnesium dioxide
magnesium oxidation
magnesium oxide
manganese oxide
12
3/4 of the elements in the periodic table are metals.
True
False
13
What charge does a proton have?
electrical
neutral (no charge)
positive
negative
14
What are the columns in the periodic table called?
groups
elements
periods
molecules
15
What are the properties of all metals?
shiny, thermal conductor, electrical conductor, high melting point
shiny, thermal conductor, electrical conductor, malleable, hard.
shiny, thermal conductor, electrical conductor, malleable, ductile.
shiny, thermal insulator, electrical insulator, malleable, ductile
16
Elements are made of the same type of atom.
True
False
17
Non-metals elements are shiny and have lower boiling points than metals.
True
False
18
What is found in the nucleus of an atom?
protons and electrons
protons and neutrons
positrons and neutrons
neutrons and electrons
19
Which element has the symbol Ca?
carbon
chromium
chlorine
calcium
20
What is the relative mass of a neutron?
+1
1/1835, negligible
1
0
