History of Chemistry
Early people were producing these types of changes even though they didn't know what was happening. Two examples are fermentation and the extraction of metals from ores.
What is a chemical reaction?
The inner part of an atom that contains the proton and the neutron is called this.
What is the nucleus?
Carbon-14 (an isotope of carbon) has 6 protons and this number of neutrons, making it an unstable isotope.
What is "8 neutrons"?
This is anything that takes up space (has a mass).
What is matter?
Atomic numbers of an atom are the same as the number of these in an atom.
What are protons?
People thought you could turn iron and lead into this.
What is gold?
These particles have a positive charge and are found inside the nucleus.
What are protons?
Atomic masses are measured in this unit
What is amu?
The smallest pieces of matter are called this.
What is are atoms?
This is Carbon's atomic number.
What is 6?
This was the term for the earliest form of chemistry.
What is alchemy?
These particles are located within the nucleus, and have no charge.
What are neutrons?
A proton has this approximate amu.
What is approximately 1 AMU?
These are the three phases of matter.
What are solid, liquid, and gas?
This element has an atomic number of 2.
What is Helium?
Many elements known since antiquity retain their names and symbols from this language.
What is Latin?
These particles are negatively charged and are found outside the nucleus.
What are electrons?
A neutron has this approximate amu.
What is approximately 1 AMU?
This theory states that all matter is composed of tiny particles that are in constant, random motion.
What is the kinetic theory of matter?
Hydrogen has an atomic number of 1 because of this reason.
What is "because it only has one proton"?
He developed an atomic theory, which provided a systematic way for scientists to think about matter by proposing that it consists of atoms.
Who is John Dalton?
Most of the mass of an atom is located here.
What is the nucleus?
An electron has this approximate amu.
What is approximately .00055 amu?
Chemists classify the changes that matter undergoes into these 2 large groups.
What are physical and chemical?
Isotopes of the same element differ in this way.
What is the number of neutrons (or its atomic mass)?