Atomic Structure
What is the smallest particle of an element that retains its chemical properties?
Atom
What is the chemical name for H2O?
Watah
What is the chemical formula for methane?
CH4
What is the chemical symbol for oxygen?
O
Which group of elements on the periodic table has the largest atomic radius?
Alkali Metals
What is the positively charged particle found in the nucleus of an atom?
Proton
What is the chemical name for NaCl?
Sodium Chloride
What is the chemical formula for hydrogen peroxide?
H2O2
What is the chemical symbol for gold?
Au
What happens to the atomic radius as you move from left to right across a period on the periodic table?
Decrease
What is the total number of protons and neutrons in an atom called?
Atomic mass number
What is the chemical name for CO2?
Carbon Dioxide
What is the chemical formula for carbon monoxide?
CO
What is the chemical symbol for sodium?
Na
Which noble gas has the smallest atomic radius?
He
What is the negatively charged particle that orbits the nucleus of an atom?
Electron
What is the chemical name for NH3?
Ammonia
What is the chemical formula for nitric acid?
HNO3
What is the chemical symbol for carbon?
C
What is the trend in atomic radius as you move down a group on the periodic table?
Increase
What is the dense, positively charged core at the center of an atom called?
Nucleus
What is the chemical name for H2SO4?
Sulfuric Acid
What is the chemical formula for potassium permanganate?
KMnO4
What is the chemical symbol for helium?
He
Which element has a larger atomic radius, oxygen or sulfur?
Sulfur