Properties of Elements

Which pair of elements is most likely to have similar properties?

• tungsten and osmium

• osmium and hassium

• seaborgium and rhenium

• bohrium and tunsgten

Which properties do atoms of the same element share? Select all that apply.

• atomic number

• chemical reactivity

• melting point

The three elements in the photo all belong to the same group, or column, of the periodic table. These elements all produce salts when they react with metals. What are some differences between these elements?

• their colors

• their atomic masses

• the state of matter of each element

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NGSS.MS-PS1-1

NGSS.MS-PS1-2

Imagine that you have a sample of a substance. You cannot physically separate that substance into components. You also cannot chemically separate that substance into components. Which of the following are true about your sample? Choose all that apply.

• The sample is made up of one type of atom.

• The sample is made up of multiple elements.

• The sample is made of a single element.

• The sample is made of several types of atoms.

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NGSS.MS-PS1-1

Each element has its own chemical and physical properties due to the properties of its atoms. Explain the relationship between elements and atoms.

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NGSS.MS-PS1-1

NGSS.MS-PS1-5

The periodic table is used to organize elements based on their properties. Elements in the same group have similar, but not identical, properties. What are some of the reasons that organizing elements in a periodic table is useful to scientists and engineers? Explain.

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NGSS.HS-PS1-1