Nuclear Decay
How many neutrons are in a hydrogen-3 atom?
What is 2?
Which Force holds protons and neutrons together in the nucleus?
What is Strong Nuclear Force?
Substances that undergo change in a chemical reaction are called
What is Reactants?
What term describes the group 2 elements?
What is Alkaline Earth Metals?
The particle located in the cloud region of an atom
What is the Electron?
What force holds protons and neutrons together in the atomic nucleus?
What isStrong Nuclear Force?
During nuclear fission, a nucleus
what is divides?
How many particles are in one mole of a substance?
what is 6.02 x 10²³
What elements are the most reactive metals?
What are the Alkali Metals, Group 1?
A(n) ______ is matter than is composed of one type of atom
What is an element?
Protons do not repel each other in the nucleus because of what?
What is Stromg Force?
When two smaller nuclei come together, it is called
What is Nuclear Fusion?
The noble gases rarely combine with other elements to form compounds because
What is Their outer energy levels are full?
The mass number is equal to
The number of Protons and Neutrons
The nucleus of an atom is _________ charged.
What is positively?
What happens in a nucleus during gamma decay?
What isThe number of protons and neutrons stay the same?
A high temperature is required for what to occur?
What is nuclear fusion?
A penny is composed of pure lead, while a schilling is made of sterling silver, an alloy of silver and copper. What correctly identifies the type of matter for both coins (alloys and elements)
Lead is an element and sterling silver is an alloy
Carbon-14 and carbon-12 have the same number of protons bur a different number of neutrons. These different forms of the same element are called
What are Isotopes?
Neutrons have a _______ charge.
What is neutral?
In a radioactive nucleus, the electric force is ________ by the strong force?
What is Powered By?
In the sun, hydrogen atoms fuse to form _________
What is Helium?
The substances that result from a chemical reaction are called what
What is products?
What group of elements on the periodic table is the least reactive?
What is Group 18, Noble Gases
The smallest piece of an element that still retains the properties of the element
What is an atom?