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WorksheetsElements and Ions
Total questions: 20
Worksheet time: 10mins
A substance that cannot be broken down any further without losing its properties.
Compound
Mixture
Element
Suspension
The subatomic particle with a positive charge
Proton
Neutron
Electron
The subatomic particle/s found in the nucleus
Electron
Neutron
Proton
Atoms are mostly...
Tightly packed
Empty space
The mass of an atom is found by adding which subatomic particles?
Proton
Neutron
Electron
The number of _______________ in an atom is represented by its atomic number.
Protons
Neutrons
Electrons
If an atom has 12 neutrons and 11 protons, what is its atomic mass?
(a)
Cations are...
Positive
Negative
Neutral
Non-metals
Which of the following would produce an anion?
Al
Ca
K
F
The number at the bottom of each square on the periodic table is the ...
Atomic Number
Atomic Mass
Element Name
Chemical Symbol
How many protons does Helium (He) have?
1
2
3
4
How many neutrons does Hydrogen (H) have?
(a)
15. What is the atomic number of this atom?
2
4
6
none of the above
How many valence electrons does this element have?
(a)
What is the electrical charge of the ion form of this element?
(a)
How many electrons are in a gold atom?
79
118
197
275
How many neutrons are in a gold atom?
79
118
197
275
What is the name of this compound?
MgF2
Manganese fluoride
Magnesium fluorine
Manganese fluorine
Magnesium fluoride
What is the chemical formula for Silver oxide?
(a)
Which is the correct formula for Calcium phosphate?
(Hint: Phosphate is PO43-)
Ca(PO4)
Ca3(PO4)2
Ca2(PO4)3
Ca12(PO4)2
