Subatomic Particles
What are the three main types of subatomic particles?
What are protons, neutrons, and electrons?
What is atomic mass?
What is the weighted average mass of an element's protons and neutrons in the nucleus?
What are electron shells?
What are the orbits around the nucleus where electrons are found?
How are elements primarily organized on the periodic table?
What is by increasing atomic number?
What is a chemical symbol?
What is a one or two-letter abbreviation for an element?
Which particle has a positive charge?
What is a proton?
Which unit is atomic mass measured in?
What is atomic mass units (amu)?
How many electrons can the first shell hold?
What is 2 electrons?
What are groups on the periodic table?
What are the vertical columns of elements with similar properties?
What is the chemical symbol for water?
What is H₂O?
Where are neutrons found?
What is in the nucleus of an atom?
What does a higher atomic mass indicate about an element?
What is it has more protons and neutrons?
What is the maximum number of electrons in the second shell?
What is 8 electrons?
What are periods on the periodic table?
What are the horizontal rows of elements?
What is the chemical symbol for sodium?
What is Na?
What is the charge of an electron?
What is negative?
How is the atomic mass of an element found on the periodic table?
What is the number listed below the element's symbol?
How do electron shells relate to an element's reactivity?
What is elements with full outer shells are less reactive?
What does it mean if elements are in the same group?
What is they have similar chemical properties?
What do the letters in a chemical symbol represent?
What is the name of the element?
How do protons and neutrons compare in mass?
What is they both have the same weight value.
Why do isotopes of an element have different atomic masses?
What is they have different numbers of neutrons?
What is the name for the outermost shell of electrons?
What is the valence shell?
What is the significance of the zig-zag line on the periodic table?
What is it separates metals from nonmetals?
How are chemical symbols derived for elements?
What is they are often based on the element's name in Latin or Greek?