BTEC level 3 Applied Science Unit 1 Chemistry

The force between the nucleus and the outer electrons is called ________

The force between molecules is ____________ force

What is the trend for atomic radius on the periodic table? ( a statement about periods and groups is required for the mark)

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What is the Aufbau principle? Electrons fill shells and sub-shells in order of __________ energy.

What is ionic bonding?

• Strong forces of attraction between the lone pair of an oxygen, nitrogen or fluorine atom and an electron-deficient (delta positive) hydrogen.

• A strong electrostatic attraction between oppositely charged ions ( metal and non-metal)

• A strong electrostatic attraction between two nuclei and the shared pair(s) of electrons between them

• Delocalised electrons moving between positive metal ions in a regular layer structure.

What is covalent bonding?

• Strong forces of attraction between the lone pair of an oxygen, nitrogen or fluorine atom and an electron-deficient (delta positive) hydrogen.

• A strong electrostatic attraction between oppositely charged ions ( metal and non-metal)

• A strong electrostatic attraction between two nuclei and the shared pair(s) of electrons between them

• Delocalised electrons moving between positive metal ions in a regular layer structure.

What is metallic bonding?

• Strong forces of attraction between the lone pair of an oxygen, nitrogen or fluorine atom and an electron-deficient (delta positive) hydrogen.

• A strong electrostatic attraction between oppositely charged ions ( metal and non-metal)

• A strong electrostatic attraction between two nuclei and the shared pair(s) of electrons between them

• Delocalised electrons moving between positive metal ions in a regular layer structure.

What is hydrogen bonding?

• Strong forces of attraction between the lone pair of an oxygen, nitrogen or fluorine atom and an electron-deficient (delta positive) hydrogen.

• A strong electrostatic attraction between oppositely charged ions ( metal and non-metal)

• A strong electrostatic attraction between two nuclei and the shared pair(s) of electrons between them

• Delocalised electrons moving between positive metal ions in a regular layer structure.

What charge ions do metals usually form?

• positive

• negative

• oxidative

• neutral

• reductive

Loss of electrons is known as __________