📚 20 CHEMISTRY TERMINOLOGIES AND THEIR MEANINGS
1. ATOM:
~ It is the smallest part of an element that can ever exist and still possess the chemical properties of that element or
~ it is the smallest particle of an element which can take part in a chemical reaction.
2. IONS:
~Is any atom or group of atoms which posses an electric charge. Examples are: Cl-, Na+, SO2-, NO- etc
3. MOLECULES:
~Smolecule is the smallest particle of a substance that can normally exist alone and still the chemical properties of that substance, be it an element or a compound. Eg:-O2, H2O,CH4,C2H5OH etc
4. ELEMENT:
~An element is a substance which cannot be split into simpler units by an ordinary chemical process.
Eg.Hydrogen(H),Oxygen(O), Neon(Ne) etc
5. COMPOUND:
~Is a substance which contains two or more elements chemically combined together. Eg:- H2O, H2SO4, ZnO etc
6. MIXTURE:
~Contains two or more constituents w/c can easily be separated by physical method.Eg: air, soil, palm wine, blood etc.
7. VALENCY:
~Is the combining power of elements and is the number of hydrogen atoms that can combine with or replace ( either directly or indirectly) one atom or that element.
8. ATOMIC NUMBER(Z):
~ Is the number of protons in one atom of an element.
9. ATOMIC MASS(A):
~Is the sum of the protons and neutrons contain in an atom of an element.
10.ISOTOPY:
~Is a phenomenon whereby atoms of an element exhibit different mass numbers but have the same atomic number. Example is: Cl - 35 & Cl -37,
11. ACID:
~ Is a substance which produces hydrogen ions ( or protons) as the only positive ion when dissolved in water . Examples are: HCl, HNO3 etc
12. BASE:
~Is a substance which will neutralize an acid to yield a salt and water only. Examples are: NaOH, Ca(OH)2 etc
13. SAlT:
~Is the compound formed when all or part of the ionizable hydrogen of an acid is replaced by metallic or ammonium ions. Eg:- NaCl, KHSO4, Zn(OH)Cl etc
14. METAL:
~ Is an element that ionized by electron lost. Examples are: K, Na, Cu, Mg etc
15. NON METAL:
~Is an element that ionized by electron gain. Examples are: O, Br, N etc
16. AQUEOUS:
~Solution of a substance in water.
17. ALLOTROPY:
~Is the ability of an element to exist in various forms in the same physical state, eg allotropes of carbon: diamond and graphite.
18. ELECTRON:
~Is the negatively charged particle of an atom that orbits the nucleus .
19. INORGANIC:
~Are compounds that are not derived from living organisms and typically do not contain C-H bond.
20. ORGANIC:
~Are compounds derived from living organisms and typically contain C-H bond.
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1. ATOM:
~ It is the smallest part of an element that can ever exist and still possess the chemical properties of that element or
~ it is the smallest particle of an element which can take part in a chemical reaction.
2. IONS:
~Is any atom or group of atoms which posses an electric charge. Examples are: Cl-, Na+, SO2-, NO- etc
3. MOLECULES:
~Smolecule is the smallest particle of a substance that can normally exist alone and still the chemical properties of that substance, be it an element or a compound. Eg:-O2, H2O,CH4,C2H5OH etc
4. ELEMENT:
~An element is a substance which cannot be split into simpler units by an ordinary chemical process.
Eg.Hydrogen(H),Oxygen(O), Neon(Ne) etc
5. COMPOUND:
~Is a substance which contains two or more elements chemically combined together. Eg:- H2O, H2SO4, ZnO etc
6. MIXTURE:
~Contains two or more constituents w/c can easily be separated by physical method.Eg: air, soil, palm wine, blood etc.
7. VALENCY:
~Is the combining power of elements and is the number of hydrogen atoms that can combine with or replace ( either directly or indirectly) one atom or that element.
8. ATOMIC NUMBER(Z):
~ Is the number of protons in one atom of an element.
9. ATOMIC MASS(A):
~Is the sum of the protons and neutrons contain in an atom of an element.
10.ISOTOPY:
~Is a phenomenon whereby atoms of an element exhibit different mass numbers but have the same atomic number. Example is: Cl - 35 & Cl -37,
11. ACID:
~ Is a substance which produces hydrogen ions ( or protons) as the only positive ion when dissolved in water . Examples are: HCl, HNO3 etc
12. BASE:
~Is a substance which will neutralize an acid to yield a salt and water only. Examples are: NaOH, Ca(OH)2 etc
13. SAlT:
~Is the compound formed when all or part of the ionizable hydrogen of an acid is replaced by metallic or ammonium ions. Eg:- NaCl, KHSO4, Zn(OH)Cl etc
14. METAL:
~ Is an element that ionized by electron lost. Examples are: K, Na, Cu, Mg etc
15. NON METAL:
~Is an element that ionized by electron gain. Examples are: O, Br, N etc
16. AQUEOUS:
~Solution of a substance in water.
17. ALLOTROPY:
~Is the ability of an element to exist in various forms in the same physical state, eg allotropes of carbon: diamond and graphite.
18. ELECTRON:
~Is the negatively charged particle of an atom that orbits the nucleus .
19. INORGANIC:
~Are compounds that are not derived from living organisms and typically do not contain C-H bond.
20. ORGANIC:
~Are compounds derived from living organisms and typically contain C-H bond.
@Ethiomatrichub
@Ethiomatrics
@Ethioquizzes