WorksheetsChemistry: Precision and Design - Quiz 4 (Sections 2.3-2.4)
Total questions: 7
Worksheet time: 4mins
Jackson is studying the atomic structure of elements in his chemistry class. He comes across a neutral atom of sulfur that has 16 protons and 18 neutrons. Which of the following is the correct atomic symbol for this atom?
16/34 S
16/18 S
18/16 S
34/16 S
William is studying two samples of the same element, but he notices that the atoms in each sample have different mass numbers. What are atoms of the same element that differ in their mass numbers?
isotopes
ions
nucleons
quarks
Mia is learning about the particles that make up atoms. She wants to know: Which of the following subatomic particles is the lightest?
nucleon
proton
neutron
electron
Emma is studying chemistry and wants to know what the name is for the number of protons in an atom. What is it called?
mass number
atomic number
nucleon number
subatomic number
During a science experiment, Nora is asked to identify which subatomic particle has zero electrical charge. Which of the following should she choose?
nucleon
proton
neutron
electron
During a science fair, Lily set up an experiment where she shot tiny balls at a thin sheet of gold foil, expecting them to pass straight through. What unexpected observation did Lily make that led her to question the existing model of the atom?
The foil allowed the balls to pass through.
The foil absorbed the balls.
The foil reflected some balls back.
The foil neutralized the balls.
Kai is studying the properties of iron ions in his chemistry class. He comes across a sample labeled 56/26 Fe3+. How many electrons are in this ion?
23
26
29
56
