Atomic Structure and the Periodic Table Flashcards
What is the charge of a proton?
1+ (positive)
True or False? Elements contain more than one type of atom.
False
Give the formula for carbon dioxide.
CO2
the numbers should be in subscript but i can’t type that here
Give the formula for sodium carbonate.
Na2CO3
the numbers should be in subscript but i can’t type that here
What is the difference between a compound and a mixture?
Compounds are elements chemically bonded together.
Mixtures are elements mixed together in a solution.
What is the name of the pattern formed from carrying out paper chromatography?
Chromatogram
Which method of separation is used to separate an insoluable solid from a liquid?
Filtration
Give the name of a method to separate a soluable solid from a liquid.
Evaporation
Which method of distillation would you use to separate liquids with similar boiling points?
Fractional distillation
Who discovered that the plum pudding model was wrong?
Ernest Rutherford
What is the electronic structure of sodium?
2.8.1
Why did Mendeleev leave gaps in his Table of Elements?
To make the pattern fit when the elements were discovered.
How are the group number and the number of electrons in the outer shell related?
Group no is the same as electrons in outer shell
What kind of ions do metals form?
Positive ions
Where are the non-metals on the periodic table?
To the right
State the products of the reaction of sodium and water.
Sodium hydroxide and hydrogen
How do the boiling points of halogens change as you go down the group from fluorine to astatine?
Higher boiling points
What is the charge of the ions that halogens form when they react with metals?
Negative
Predict whether iodine is displaced by chlorine in a solution of potassium iodide.
Chlorine displaces iodine
What is the trend in boiling point as you go down Group 0?
Increasing boiling point
