Things about a Toms
What is the term for amount of matter in an object, usually measured in grams or kilograms ?
mass
What is the term for a connection between atoms that holds them together in molecules or compounds ?
bond
What is the term for the one- or two-letter code that represents an element, such as H for hydrogen or O for oxygen. ?
chemical symbol
What is the term for a mixture of two or more metals, or a metal and another element, made to improve properties like strength or resistance to rust ?
alloy
What is the symbol for oxygen ?
O
What is the term for anything that has mass and takes up space ?
matter
What is the term for two or more atoms joined together by chemical bonds ?
molecule
What is the term for the chart that organizes all known elements by their properties and atomic number ?
the Periodic Table of Elements
What is the name of the element that is often made into an alloy to make it stronger and add color when making jewelry ?
gold
What is the symbol for a nitrogen molecule ?
N2
What is the term for the smallest particle of an element that still has the properties of that element ?
atom
What is the term for a substance made from two or more different elements that are chemically joined together ?
compound
What is the term for a characteristic of a substance that can be observed or measured without changing the substance, such as color, shape, or hardness ?
physical property
What is the term for the physical property that describes how resistant a material is to being scratched or dented ?
hardness
What is the formula for carbon dioxide ?
CO2
What is the term for a pure substance made of only one kind of atom ?
element
What is the term for a combination of two or more substances that are not chemically joined and can be separated physically ?
mixture
What is the term for a material made of only one type of particle; it can be an element or a compound ?
pure substance
What is the name of the alloy that is made mostly of iron and a small amount of carbon, and is known for its strength ?
steel
What is the formula for water ?
What is H2O
What is the term for a tiny unit of matter, such as an atom or molecule ?
particle
What is the term for a set of symbols and numbers that shows which elements are in a compound and how many atoms of each are present ?
chemical formula
How many elements are there ?
118 [94 natural, 24 synthetic]
What is the name of the alloy that is made of copper and tin, and is used for tools, statues, and coins ?
bronze
What is the symbol or formula for bronze ?
TRICK QUESTION - bronze is an alloy, not an element or molecule