Term
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Definition
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Term
| What is an alpha particle? |
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Definition
| a helium atom with removed atoms |
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Term
| What does the term 'atomic radius' mean? |
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Definition
| refers to the size of an atoms and can be measured by halving the distance between to atomic nuclei. |
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Term
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Definition
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Term
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Definition
| The temperature when a liquid becomes a gas. |
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Term
| What is a diatomic molecule? |
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Definition
| a molecule containing two atoms of the same element bonded together? |
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Term
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Definition
| a negatively charged subatomic particle that exists outside the nucleus |
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Term
| What is an electron configuration? |
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Definition
| A representation of electrons |
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Term
| What is electronegativity? |
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Definition
| the attraction between a positively charged nucleus of one atom and the negatively charged electrons of the other atom of a neighbouring atom |
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Term
| What is electrostatic force? |
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Definition
| the attraction between two opposing charges |
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Term
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Definition
| A molecule or atom that has gain or lost electrons and is now charged |
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Term
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Definition
| the process in which an atoms gains or loses electrons to form a charged ion |
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Term
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Definition
| an atom of an element that has the same number of protons but differ in neutrons |
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Term
| What is a 'melting point' |
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Definition
| The temperature in which a solid becomes a liquid |
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Term
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Definition
| an element that displays both metal and non-metal properties? |
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Term
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Definition
| a neutral subatomic particle that exists inside the nucleus |
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Term
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Definition
| Positively charged subatomic particle that exists inside the nucleus |
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Term
| What is the quantum theory? |
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Definition
| it describes the behaviour of matter and energy at the atomic and subatomic level |
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Term
| What is a subatomic particle? |
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Definition
| a component that makes up or exists with the nucleus |
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Term
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Definition
| the combining power of an element as determined by the number of valance electrons |
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Term
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Definition
| a non-metal atom that has gain one or more electrons and is negatively charged |
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Term
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Definition
| a metal atom that has lost one or more electrons and is positively chrged |
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Term
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Definition
| a sharing of electrons between two atoms |
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Term
| Properties of a covalent bond |
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Definition
- Lower melting and boiling points
- do not conduct electricity and heat
- brittle solids |
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Term
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Definition
| Electrostatic attractive forces holding ions together |
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Term
| Properties of ionic properties |
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Definition
- High melting and boiling points
- Moderate heat and electricity
- Soluble |
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Term
| What is a Lewis structure |
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Definition
| visual diagram to show valence electrons |
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Term
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Definition
| Valence electrons that are bonded together |
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Term
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Definition
| an atom gains or loses electron to reach 8 valence electrons |
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Term
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Definition
| The time it takes for half of the atoms of radioactive sample to decay |
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Term
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Definition
| an element that has the same number of protons but differ in neutrons |
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