The word describing a substance that can be hammered, bent and molded into sheets.
What is malleable?
The group number of carbon
What is group 4A?
I am a halogen in period 3.
Who is chlorine?
The direction (increase or decrease) that atomic radius changes as you go left to right across a period.
What is decreases?
The class of elements on the left two thirds of the periodic table.
What is metals?
The ability or tendency of an element to go through a chemical reaction
What is reactivity?
The period number of calcium
What is period 4?
I am the alkali earth metal in period 5
What is strontium?
The direction (increase or decrease) that electronegativity changes as you go top to bottom in a group.
What is decreases?
The name of the elements on the stair step or zig zag line on the periodic table.
What is metalloids?
The ability of an atom to attract an electron from another atom to form a chemical bond
What is electronegativity?
The group number and period number of phosphorus.
What is group 5A and period 3?
I am a halogen with the highest electronegativity on the periodic table.
What is fluorine?
The smaller of these two elements - phosphorus or oxygen.
What is oxygen?
The information about the electrons in the atom given by its period number.
What is valence electron energy level? (Or what is number of energy levels?)
The word describing a material that will turn shiny when polished.
What is luster?
The period number in which the alkali metal column begins.
What is period 2?
I am highly reactive with water and the largest element on the periodic table.
What is francium?
The more electronegative of these three elements: rubidium, titanium or arsenic.
What is arsenic?
The father of the periodic table
Who is Dimitri Mendeleev?
The distance from the center of an atom's nucleus to its outermost electron
What is atomic radius?
The group number and period number of oganesson.
What is group 8A and period 7?
I am a noble gas with a smaller atomic radius than krypton and a bigger atomic mass than neon.
What is argon?
The element in group 2A with an atomic mass higher than calcium, an atomic radius smaller than radium and a higher electronegativity than barium.
What is strontium?
The element with 6 valence electrons in the 3rd energy level.
What is sulfur?