Atom Structure
Where electrons are found?
orbiting in shells
How did Dalton describe the atom?
stated that atoms were solid indivisible spheres (could be one of the following Rutherford/Dalton or Thomson)
In which order are the elements arranged in the periodic table?
Atomic number/number of protons
What is an ion?
A charged atom/ an atoms that has lost of gained electrons
What is the name of the compound containing magnesium and fluoride?
magnesium fluoride
What is the charge of an electron?
-1
Which model did Thomson use to describe atom structure?
Plum Pudding Model
What is the name used to describe the columns in a periodic table?
Groups
A lithium atom is neutral. What is the charge on a lithium ion?
+1
What is the name of the ionic compound containing, lithium, sulfur and oxygen?
lithium sulfate
How many electrons found in the second shell?
8
How did Rutherford describe the atom structure?
stated that atoms had a central nucleus and/or electrons in orbit
What is the element in group 2, period 4?
Calcium
How does an atom become a negative ion?
Must gain electrons
What is the formula of the ionic compound sodium (Na+1) bromide (Br-1)?
NaBr
What is the mass of an electron?
1/1840
What is Bohr most famous for?
Scientists that first predicted that electrons were found in 'shells' around the nucleus (one of the following: Rutherford/Bohr/Chadwick)
Why are group 18 (noble gases) unreactive?
They have a full outer shell
What is the name of the bond between two oppositely charged ions?
ionic bond
What is the formula of the ionic compound containing magnesium (+2) and carbonate (-2)
MgCO3
What does the atomic number of atoms represent?
the number of protons
What is Chadwick famous for?
Scientist that discovered neutrons in the nucleus (one of the following: Dalton/Thomson/Rutherford/Bohr/Chadwick)
Who is described as the 'Father of the Periodic Table' because of his arrangement of elements; even leaving gaps for undiscovered elements?
Dimitri Mendeleev
What is the name of the structure formed from positive and negatively charged ions?
lattice
What is the formula for aluminium sulfide?
Al2S3