EL.4 Flashcards
Periodicity
What are the vertical columns in the periodic table known as?
Groups.
What are the horizontal rows in the periodic table known as?
Periods.
Elements in the periodic table are organized into blocks, what are the labels of the different blocks?
s, p, d, f blocks.
What type of elements are in the s block?
Reactive metals.
Which block does all non-metal belong in?
p block.
The d block contains most of what type of elements?
Transition metals.
What trend in properties does elements show when you go down a group?
They have similar chemical and physical properties, and there’s a trend in their properties.
What trend in properties does elements show when you go across a period?
Elements have fewer in common in terms of the properties when going across a period, but the properties of the elements vary in a fairly regular way and this pattern is repeated across periods.
What is the occurrence of periodic pattern called?
Periodicity.
What can the group number indicate about the electronic structure of the elements within?
It shows the number of electrons the elements have on their outer shells.
What can the period number indicate about the electronic structure of the elements within?
It shows the number of the shell that is being filled in the element.
What is the arrangement of the electrons in noble gases known as and what property noble gases does it explain?
Noble gases have closed shell arrangements. This arrangement means that noble gases are very stable.
What ions do group 1 elements normally form?
+1 ions.
What ions do group 2 elements normally form?
+2 ions.
What ions do group 7 elements normally form?
-1 ions.
