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Year 10 Chemistry atomic structure, Electron configurations and the periodic table Flashcards | StudBud
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Year 10 Chemistry atomic structure, Electron configurations and the periodic table
Year 10 Chemistry atomic structure, Electron configurations and the periodic table
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A quiz which covers the first 2 weeks of chemistry for year 10
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
Na is the symbol for which element
<div>Neon</div>
Salt
Nitrogen
Sodium
2
The atomic number of an element is the number of ?
protons anc neutrons
Protons
Electrons and neutrons
neutrons
3
what is the name od this element and how many neutrons does this element have?
gold, 79
copper, 117
gold, 117
Silver, 79
4
Aluminium is considered to be which of the following
metalloid
non-metal
transition metal
metal
5
<div>What happens to the outer shells as you go across rows of the periodic table</div>
nothing changes
<div>More shells are formed</div>
<div>The outer shell is emptied</div>
The outer shell is filled
6
What is the most reactive group of metals?
group 2
group 1
Transition metals
7
The mass number of an element is the number of
electrons and protons
protons and neutrons
protons
neutrons
8
How do you calculate the number of neutrons an element has from its mass number?
mass number - atomic number
mass number
atomic mass- mass number
atomic number - mass numberq
9
What is the most reactive group of non-metals
Group 7
Group 5
Group 6
Group 4
10
The number of valence electrons and the number of protons in an atom of oxygen are?
2 electrons 8 protons
6 electrons, 6 protons
6 electrons, 8 protons
8 electrons 6 protons
11
He, Ne and Ar are all noble gases. They are non-reactive because?
They have a filled outer electron shell
They can't be heated
They are gases
They want to lose electrons
12
C-12, C-13 and C-14 are interesting because
they are isotopes of carbon
they are different elements
they are allotropes of Carbon
they are metals of carbon
13
If an atom has an atomic number of 15 and a mass number of 25. how many neutrons does it have?
10
15
0
5
14
what group is likely to have elements with valencies of -2
group 7
group 1
group 6
group 2
