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Worksheetsatomic structures
Total questions: 18
Worksheet time: 10mins
How many electrons does sulfur have
16
32
48
12
What do protons, electrons and neutrons make?
element
compound
atom
A __________ is a subatomic particle with a positive charge.
proton
neutron
electron
nucleus
Believed atoms were solid, indivisible spheres.
Dalton
Rutherford
Bohr
Democritus
What do protons, electrons and neutrons make?
element
compound
atom
How many electrons does sulfur have
16
32
48
12
What are the steps needed to draw a modified Bohr model of an atom for a specific element like Carbon? Check all that are correct.
1. Find the symbol for the element on the Periodic Table of Elements.
2. Look for the number listed above or to the upper right or left of the Atomic Symbol for the element. This is the number of protons it has.
3. Draw a circle to represent the nucleus of the atom and write the number of protons in that circle. This is important because each element is defined by the number of protons it has.
4. Draw circles around the nucleus and fill each energy shell starting with the innermost shell with the right number of electrons until the total number matches the number of protons. Remember: the innermost shell number 1 can hold only 2 electrons; the second shell can hold a total of 8; the third can hold 18 before it is filled.
5. Throw a set of dice to determine how many protons an atom of an element has.
What does CHNOPS stand for when talking about the matter that living things are made of?
Candy, Hot Dogs, Nachos, Onions, Peppers, Salt
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
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What does the Bohr model for neon look like?
What is the atomic number?
the number of protons in the nucleus
the number of protons and neutrons in the nucleus
the number of neutrons in the nucleus
the number of protons in the energy levels
different numbers of neutrons create these different "versions"
isotopes
metals
electrons
atomic mass
Which of the following includes an example of a chemical property of an element?
Aluminum is solid at room temperature and is a poor thermal insulator.
Sulfur is not shiny and is not malleable.
Sodium is a solid at room temperature and reacts with other elements.
Silicon is shiny and is a poor conductor of electricity.
What does CHNOPS stand for when talking about the matter that living things are made of?
Candy, Hot Dogs, Nachos, Onions, Peppers, Salt
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
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What do protons, electrons and neutrons make?
element
compound
atom
A __________ is a subatomic particle with a positive charge.
proton
neutron
electron
nucleus
