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- Multiple ChoicePlease save your changes before editing any questions.
If an element has an atomic number of 4, this means...
It has 4 protons
It has 4 neutrons
It has 2 electrons
It has 2 neutrons
- Multiple ChoicePlease save your changes before editing any questions.
If an element has 10 protons, it also has...
10 electrons
5 electrons
5 positive charges
10 negative charges
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An element has an atomic number of 12, this element is
Beryllium
Magnesium
Calcium
Aluminium
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The following is not a group 1 metal
Sodium
Rubidium
Scandium
Francium
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The following is a group 2 metal
Vanadium
Strontium
Caesium
Nitrogen
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The following combinations are halogens
Chlorine, Iodine, Sulfur
Chlorine, Nitrogen, Sulfur
Sulfur, oxygen, Phosphorus
Fluorine, Chlorine, Bromine
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The following element makes up around 78% of earth's atmosphere
Oxygen
Carbon dioxide
Nitrogen
Magnesium
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If an element is from group 3, it means....
It has three electron shells
It has three valence electrons
It is a non-metal
It is a gas
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If an element is from period 4, this means...
It has 4 protons
It has 4 electrons
It has 4 electron shells
It has 4 valence electrons
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If an element is from the d block it is classified as...
An alkaline earth metal
An alkali metal
A transition metal
A halogen
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If an element is from the p block, this means...
It is from groups 13-18
It is always a metal
It is a transition metal
It is always a non-metal
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An isotope of carbon has 8 neutrons. This means it has...
2 more neutrons than its original form
2 less neutrons than its original form
2 more protons than its original form
2 less protons than its original form
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An isotope of nitrogen has 7 neutrons. This means...
It has an atomic mass of 14
It has an atomic number of 14
It has 14 neutrons
It has 14 protons
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An isotope of beryllium has an atomic mass of 10. This means...
It has 1 more proton than its original form.
it has 1 more neutron than its original form.
It has 1 more electron than its original form.
It has 1 less proton than its original form.
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Consider the element: Potassium.... choose the correct statement.
It is from period 4.
It has 4 valence electrons.
It is from group 4.
It has 4 protons.
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Which statement regarding iron is incorrect....
It has 26 protons.
It has 26 electrons.
It is an alkaline earth metal.
It is a transition metal.
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Which of the following statements regarding chlorine is incorrect?
It has 17 protons.
It has 17 electrons
It is from group 1
It is from period 3.
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If an element gains one electron, it means...
It has more negative charges than positive charges.
It has more positive charges than negative charges.
It will have a charge of +1
It will have a charge of 0
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If an element loses 2 electrons, it means...
It is from group 2.
It is a halogen.
It has more negative charges than positive charges.
It obtains a charge of 2-
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A positively charged species is classified as...
A cation.
An anion.
A neutral atom.
An isotope.