a element is a substance that is made up of only one type of atom
2 of 23
what is a compound
a compound is when 2 or more different elements chemically bond
3 of 23
what is a molecule
a molecule contains of atoms that are chemically bonded
4 of 23
why do elements in the same group have similar chemical properties
they have similar properties becuase the number of group is the same of electon(s) they have on there outer shell
5 of 23
what are protons
inside a atom there is a nucleas made up of protons and neutrons, protons weigh a mass of 1 and are positively charged
6 of 23
what are neutrons
inside a atom there is a nucleas made up of protons and neutrons, neutrons weigh a mass of 0 and are neutral
7 of 23
what are electrons
electrons surround the atom, they weigh a very low mass and they are negatively charged
8 of 23
where is the mass of the atom
the mass of the atom is neutral, because the negatively charged electrons cancel out the postive proton charge making it equal
9 of 23
word equation for the reaction of the alkali metal potassium
potassium + water = potassium hydroxide and hydrogen
10 of 23
what is ionic bonding
when a metal reacts with a non-metaal the metal atoms lose electrons and becomes positive ions, the non metal atoms gain electrons and become negative ions
11 of 23
what is covalent bonding
when atoms of two non metals combine and share electrons
12 of 23
what is a ion
a ion is a charged atom
13 of 23
the formular for limestone
the formular for limestone is CaCo3
14 of 23
word equation for the reaction between calcium carbonate and nitric acid
powdered clay mixed with powdered limestone poured into a kiln
16 of 23
what is thermal decompostion
thermal decomposition is the breaking down of a substance by heating it
17 of 23
what are the reactivity series
a list of metals in the order of there reactivity, the further up the metal or the metal carbonate is, the more energy is required to thermally decompose it
18 of 23
what is displacement
displacement occurs when a more reactive metal pushes a less reactive metal out of its compound
19 of 23
what is reduction
where you remove oxygen from a substance
20 of 23
what is a metal alloy
a metal alloy is a mixture where at least one of the substances is a metal
21 of 23
how are the atoms arrganed in iron
the atoms are arrnaged in a regular way, layers that lets atom slide over each other
22 of 23
what is a hydrocarbon
a hydrocarbon is a compound containing of two elements; hydrogen and caron atoms
23 of 23
Other cards in this set
Card 2
Front
a element is a substance that is made up of only one type of atom
Back
what is a element
Card 3
Front
a compound is when 2 or more different elements chemically bond
Back
Card 4
Front
a molecule contains of atoms that are chemically bonded
Back
Card 5
Front
they have similar properties becuase the number of group is the same of electon(s) they have on there outer shell
Comments
No comments have yet been made