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Elements Scaffolding

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Elements Scaffolding

Answer each question. Use the information in the questions to help with the drawing task.

Element and Atom Basics

1.In your own words, explain what makes a substance an element.

2.Which statement best describes an atom?

The smallest particle of an element that keeps that element's chemical properties
A mixture of two or more different elements
A chart that arranges elements by their uses
A particle found only in metals

3.An atom of an element has 13 protons. What is its atomic number?

4.What information does the atomic number give you about an element?

5.How is the periodic table organised?

Classifying Elements

6.Match each element to its broad classification.

Copper (Cu)
Nitrogen (N)
Germanium (Ge)
Sulfur (S)
Aluminium (Al)
Antimony (Sb)
Helium (He)
Zinc (Zn)

Metal
Non-metal
Non-metal
Metal
Metalloid
Metalloid
Non-metal
Metal

7.Which property is most typical of metals?

They usually conduct heat and electricity well.
They are always gases at room temperature.
They cannot be shaped or drawn into wires.
They have properties exactly halfway between metals and non-metals.

8.A material has properties between those of metals and non-metals and can act as a semiconductor. What classification does it fit?

9.True or false: Every non-metal is a gas at room temperature.

TrueFalse

A Carbon Atom

10.Carbon-12 has an atomic number of 6 and a mass number of 12. How many protons and neutrons are in its nucleus?

11.A neutral carbon atom has six electrons. How are these arranged in its shells?

Draw a neutral carbon-12 atom. Include a labelled nucleus, the correct numbers of protons and neutrons, two electron shells, and all six electrons in the correct shells. Carbon-12 has 6 protons and 6 neutrons; arrange its electrons as 2 in the first shell and 4 in the second shell.

12.Explain why a neutral carbon atom has six electrons.