736553
Beschreibung
Quiz von lizgracedaisy, aktualisiert more than 1 year ago
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Erstellt von lizgracedaisy
vor mehr als 10 Jahre
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Frage 1
Frage
How many different elements are there?
Antworten
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Around 1000
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Around 200
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Around 100
Frage 2
Frage
Number of protons =
Antworten
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number of neutrons
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mass number
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number of electrons
Frage 3
Frage
Choose the BALANCED equation
Antworten
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Mg + O2 -> MgO
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2Mg + O2 -> 2Mg0
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Mg + O2 -> 2MgO
Frage 4
Antworten
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It's found as Zinc naturally
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Electrolysis
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Reduction with carbon
Frage 5
Frage
Methods of extracting copper like Bioleaching and Phytomining are good because....
Antworten
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High grade copper ores don't exist
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High grade copper ores are running out
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Demand for copper is decreasing so other methods are too large scale
Frage 6
Frage
Which of these is an alloy?
Antworten
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Silver
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Bronze
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Gold
Frage 7
Frage
On the second electron shell (when showing an element's electronic structure) there can be up to....
Antworten
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2 electrons
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4 electrons
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8 electrons
Frage 8
Frage
If neon has 10 protons, which diagram correctly shows its electronic structure?
Antworten
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Image:atom_lithium.gif (image/gif)
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Image:atom_sodium.gif (image/gif)
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Image:atom_neon.gif (image/gif)
Frage 9
Frage
If neon has 10 protons, which diagram correctly shows its electronic structure?
Antworten
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Image:atom_lithium.gif (image/gif)
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Image:atom_sodium.gif (image/gif)
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Image:atom_neon.gif (image/gif)
Frage 10
Antworten
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Copper
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Potassium
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Hydrogen
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