The elements in group 1 are known as __?
Alkali metals
How many groups and periods are there on the periodic table?
18 groups, 7 periods
I am a noble gas in the first period
Helium
The ability to be hammered into sheets is known as ___.
Malleability
What are the elements in group 2 known as?
Alkaline earth metals
___ are usually gases or brittle solids at room temperature.
Non-metals
I am a metalloid with atomic number 51.
Antimony
Elements that have both properties of nonmetals and metals.
Metalloids
What are the elements in group 18 called?
Noble gases
Which metal is liquid at room temperature?
Mercury
I am the first element in the most reactive non-metal group.
Fluorine
The ability for heat or electricity to easily flow through something
Conductability
What are the elements in group 17 called?
Halogens
Shiny, malleable, ductile, typically solid at room temperature, and a good conductor
Metals
I am a toxic gas that was used in WW1 (and I also clean swimming pools)
Chlorine
Can be drawn into wires
Ductile
Which group is the least reactive?
Group 18 / noble gases
I am the last element in the group of the most reactive metals.
Francium
An element is very ________________ if it tends to grab onto electrons from other elements.
Electronegative