Atoms of each element have different ______ numbers.

Why is arranging elements based on their proton number beneficial?

What were the significant stages in the history of the development of the periodic table?

How did Mendeleev use his Periodic Table to predict the existence of unknown elements?

How can you use the Periodic Table to identify the names, symbols, relative atomic masses and proton numbers of elements?

What is each vertical column of the Periodic Table?

What are the chemical symbols for Lithium, Sodium, and Potassium? What are these known as?

What happens to a freshly cut alkali metal?

How do Lithium, Sodium, and Potassium react with cold water?

When the alkali metals react with water, what do they form?

When the alkali metals react with chlorine, what do they form?

Do the alkali metals become more or less reactive as the group is descended? What is the evidence for this?

What are the main hazard symbols?

What precautions should be taken when working with Group 1 metals and alkalis?

What are the chemical symbols for the Group ___ elements chlorine, bromine, and iodine?

What state are the Halogens in at room temperature and pressure?

What colour are the Halogens at room temperature and pressure? And as gasses?

What do the Halogens consist of?

Do the Halogens become more or less reactive as the group is descended? What is the evidence for this?

How can a trend in reactivity be shown by the Halogens?

What safety precautions need to be taken when working with Halogens?

What are the formulae of hydrogen, water, and halogen molecules?

What are the formulae of the chlorides, bromides, and iodides (halides) of Group 1 metals?

How do you write word equations for reactions of alkali metals and halogens?

What is the structure of an atom?

What are the relative masses and charges of protons, neutrons, and electrons?

In any atom, the number of _______ equals the number of ________.

How are the elements in the Periodic Table arranged

When heated, what do some elements emit? (Eg. Lithium, Sodium, Potassium).

What does the light emitted from each element give?

What has the study of spectra helped chemists to do?

What did the discovery of some elements depend upon?

How can you use the Periodic Table to identify the number of protons, neutrons, and electrons in an atom?

How can you represent the arrangements of atoms?

What does each shell fill with?

What do the outer shells of elements in the same group have in common?

What are the chemical properties of an element determined by?

Molten compounds of metals with non-metals ______ _______.

What is this evidence for?

What happens during electrolysis?

What is an ion?

How can you account for the charge on the ions of Group 1 and Group 7 elements?

How can you work out the formulae of ionic compounds given the charges of the ions?

How can you work out the charge on one ion given the formula of a salt and the charge on another ion?

Compounds of Group 1 metals with Group 7 elements are _____.

What do solid ionic compounds form? Why?

What happens to the ions when an ionic crystal melts or dissolves in water?

When and why do ionic compounds conduct electricity?