The Periodic Table + Electron Arrangement Flashcards
How does the arrangement of the periodic table help chemists?
It increases by atomic number and reactivity
The periodic table is an easy way for chemists to visualise the elements and be able to quickly find out information about a certain element (such as the atomic number or atomic weight)
How can an element be tested to determ ine if it is a metal or non-metal?
If it conducts electricity it is a metal
What is a vertical column of elements in the periodic table?
group
What is a horizontal row of elements called in the periodic table?
period
In what way are elements that are in the same group similar?
they have the same number of outer electrons
What is the name of group 1
Alkali metals
what is the name of group 7
halogens
what is the name of group 8/0
noble gases
what is the name of the area between 2/3
transition metals
which group contains very reactive metals?
alkali
which group contains very reactive non-metals
halogens
which group contains very unreactive non-metals
noble gases
The transition metals are an important group of metals with a wide number of uses. name 3
pots, pans, ovens
Where are electrons located and arranged within atoms?
outer energy levels
What is the maximum number of electrons that each of the first three electron shells hold?
2,8,8