Periodic Table Y9

Why would the displacement reaction take place? (potassium chloride and fluorine)

In the periodic table, what does the group number tell us?

Who invented the 'plumb pudding' model for an atom?

There are square brackets around some elements on the periodic table. What do they mean?

Who invented the electron shell configuration concept?

In group 7, which is the most reactive element?

What element has the electron configuration 2, 8, 8, 1?

Why are some elements radioactive?

What group number will you find the halogens in?

What is the most reactive metal in group 1?

What is the name for group 0 elements?

What is the trend in reactivity for the alkali metals?

What about 2, 8, 5?

Who first proposed the idea of an 'atom'?

I am an element with 4 electrons in my third shell, what am I?

What element has the electron configuration 2, 8, 7?

What alkali metal has the electron configuration 2, 8, 1?

Would a displacement reaction take place with potassium chloride and fluorine?

What causes a noble gas to be unreactive?

In the periodic table, what does the period number tell us?

What is the unique trait of a noble gas?