The more PROTONS and NEUTRONS an atom has, the more mass it has.
1600's
The structure of an atom is, in some ways, like the structure of the SOLAR SYSTEM.
There are about 120 known elements on Earth
The nucleus is made of TWO kinds of particles - PROTONS and NEUTRONS.
Iron or gold or silver
It is FE, which is short for the word ferrum, the Latin word for Iron. Brooke Crawford, Tony Sparks, Hannah Getter, MacKenzie Hazleton
space, weight
All matter is made of a simple substance called ELEMENTS.
An element is a substance that CANNOT be broken down into a simpler substance
Some symbols for elements come from LATIN.
Most substances are made of a COMBINATION of TWO or MORE elements
Lead has more because Helium has 2 protons and 2 neutrons and Lead has 82 protons and 125 neutrons. Eric Bober, Matt Bolen, Keirra Waters, Corrine Deeter
All atoms of the same element have the SAME NUMBER OF PROTONS AND ELECTRONS.
Most of the mass of an atom is in the NUCLEUS.
They thought matter was made of just EARTH, AIR, FIRE, and WATER
Millions. Tasia Washburn, Julie Hartline, Jonah Emery, Baylee Malone
As tiny as atoms are, they have MASS.
In an atom, tiny particles called ELECTRONS orbit the nucleus, or center, of an atom.
Each element can be identified using a SYMBOL.
The more atoms you have in a sample, the MORE it will WEIGH.
What orbits the nucleus of an atom?
Matter is everything in the universe that takes up __________ and has _________
What were the elements that the ancient Greeks once thought existed?
What is the nucleus made of?
What are most substances we know made of?
What do all atoms have?
How many gold atoms are in a gold coin?
What do all atoms of the same element have?
Name one example of a substance made of a single element
How is the mass decided?
Does Helium or Lead have more mass, and why?
Where do some symbols for elements come from?
What is the symbol for the element Iron?
How many known elements are there on Earth
In what year range did people begin to know there were more elements?
What is used to identify each element?
Where is most of the mass of an atom?
What is the structure an atom is like?
What is all matter made of?
What happens if there are more atoms in a sample?
Can an element be broken down into a simpler substance?