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level: The periodic table

Questions and Answers List

level questions: The periodic table

QuestionAnswer
What does periodic meanAt regular intervals
In what year was the periodic table put in order of mass and by who1865, by John newlands
What are the vertical columns calledGroups
What are the horizontal columns calledPeriods
How many groups are there8
What era groups 1,2,7 and 8 called1:alkali metals2:alkaline earth metals7:halogens8:noble gasses
How is the group number related to the elementsThe group number is the number of elements in the outer shell of the elements
Group 8 is also called group0
How many periods are in the periodic table7
How are the periods usually labelledn = 1 etc
What does the steps of stairs or the bat line separateMetals from non metals
What are the elements in the middle of the periodic table calledtransition metals/transition elements
In the first atom shell what is the maximum amount of electrons can be in it2
Elements in group one tend to loseOne electron
Elements in group 2 tend to lose2 electrons
Elements in group 7 tend to gain2 electrons
Elements in group 8 tend to gain1 electron
How do ions workWhen they lose an electron they form a positively charged atom because there is 1 more protons then electrons same with electrons but negatively
What is an ionic bondThe force of an attraction between the ions( negative and positive) bonds the ions together(ionic bond) from the electrons moving from one to the other
A compound is when2 atoms are chemically combined( has to be different element atoms)
A mixture is when2 atoms of the same elements join together
What is our periodic table in order ofOf increasing atomic number