Periodic Table Self Test 2

the rows in the periodic table are called

• Rows

• Periods

• Columns

• Tables

The nucleus of an atom contains

• Protons and electrons

• electrons and neutrons

• Protons and neutrons

• Neutrons and electrons

Which of the following has a positive charge?

• Proton

• Neutron

• Electron

• Atom

Aluminium has an atomic number of 13. How many electrons does it have as a neutral atom?

The electrons in atoms are arranged in orbitals

• True

• False

What is the definition of an atom?

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The atoms of an element can be represented by a set of three letters, as shown in the image . What does X stand for ?

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The atoms of an element can be represented by a set of three letters, as shown in the image . What does Y stand for ?

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The atoms of an element can be represented by a set of three letters, as shown in the image . What does Z stand for ?

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Boron becomes a B3+ ion to get a full outershell of electrons. How many protons, neutrons and electrons does it have?

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