The Structure of the Atom Flashcards
What is the Periodic Table?
Where elements are listed.
What are elements?
Substances made up of only one type of atom,
e.g. gold
what are elements put in order of?
Atomic number
Each element has it’s own _____________.
symbol
what are the rows elements are arranged into called?
periods
what are the vertical rows of elements called?
groups
What is found in the nucleus of the atom?
Protons and Neutrons
How are compounds formed?
Compounds are formed by the bonding of two or more different elements.
how do you know if an element is solid?
When the atoms in an element are tightly packed together it is a solid
how many periods are there in the periodic table at the moment?
7
how many groups are in the periodic table at the moment?
8
Elements are split into two types on the periodic table. what are they?
Metals and non metals
Name the first group
The alkali metals
name the second group
the alkaline earth metals
name the 7th group
the halogens
name the eight group
the noble gases
How is an element on the periodic table laid out?
Atomic number in the left top corner
mass number in the left bottom corner
symbol in the middle with its name underneath
Where are are these located?
proton
neutron
electron
i The nucleus
ii The nucleus
iii Outside the nucleus
what is the relative mass of these
proton
neutron
electron
i 1 unit
ii 1 unit
iii 1/1840 unit
what are the relative charges of these three?
proton
neutron
electron
i + 1
ii 0
iii - 1
What are isotopes?
Atoms of the same element that have a different number of neutrons.
how many isotopes does carbon have?
3
draw the bohr structure for... he Li mg Ch4 H20
do it now
