Vocab
A simple substance that cannot be broken down further by ordinary means.
What is an element?
What is a molecule?
Is is the smallest unit of a compound still identified as that compound.
In the formula H2O, how many elements and how many atoms are there?
There are two elements and three atoms.
How is an element different from a compound?
An element is one substance and a compound is two or more.
Is Hydrogen a solid, liquid, or gas?
Gas
The smallest part of an element that can still be identified as that element.
What is an atom?
What is this element:
Xe
Xenon
In the formula C3H6O , how many elements and atoms are there?
Elements=3 Atoms=10
What is the difference between an atom and a molecule?
An atom is the smallest unit of an element and a molecule is the smallest unit of a compound.
Uppercase/capitalized
The mass of an atom, usually found on the periodic table. It's the total number of protons and neutrons in an atom's nucleus.
What is atomic mass?
What is this element: Pt
What is Platinum?
How many elements and atoms are in this formula: NH4Br
Elements=3 and Atom=6
A one or two-letter abbreviation for an element. For example, "O" is the symbol for oxygen.
What is a chemical symbol?
A subscript is always written____ the line.
Below
The number of protons in an atom's nucleus. It tells you what element an atom is.
What is an atomic number?
What is this compound: NaCl
Sodium Chloride/salt
Most elements are in which state at room temperature?
Solid
This represents how many atoms of that element are in the formula/compound.
What is the subscript in a chemical formula represent?
How many atoms of oxygen are in the chemical formula below?
C66H18O4
What is 88?
Define: Chemical Formula
A formula that shows the elements that make up the compound
What is the chemical symbol for antimony?
What is Sb?
About how many elements are there on the periodic table?
What is 118.
Why do some elements have symbols that don't sound like their names? Like Iron=Fe?
Because the symbol comes from the Latin name/other language.
Explain how two elements can be different than the compound they create.
Two elements can have different properties than the compoundthey create. A poisonous gas and a metal (Chloride and Sodium) can make a white edible solid=salt.