7th Grade Chemistry Part 1 Review

Valance Electrons are not

• the electrons in the outer most shell.

• determines an elements group number

• shows reactivity of an element

• All the electrons of an atom.

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Reactivity is

• the willingness of an element to form bonds.

• nothing really

• has something to do with the number of neutrons.

• found by locating them on their period designation.

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Groups are found

• by looking at the column or up and down sections of the periodic table.

• by looking across to the left or right of the periodic table.

• unimportant in studying Chemistry.

• count the electron shells of elements.

Period is the

• rows of elements and they tell us the numbers of shells of electrons.

• are the columns of elements and tell us the valance electrons.

• the root name of the table.

• the hour you come to class.

Metals are the all of these but

• solid at room temperature, mostly.

• malleable and ductile.

• low density and low melting point.

• good conductors of electricity and heat.

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Nonmetals are all but

• gases at room temperatures, mostly.

• brittle, and not malleable.

• have luster

• low density and low melting point.

Metalloids are not

• liquids at room temperature.

• share traits of both metals and nonmetals.

• only seven are currently identified.

• shown as a zig-zag line on the periodic table.

Atoms are made of all these but

• Protons

• Neutrons

• Electrons

• Elements

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Atomic mass is the combination of which two subatomic structures.

• Protons and Neutrons

• Electrons and Neutrons

• Neutrons and Newtons

• Protons and Electrons

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Which of these statements is correct about subatomic charges?

• Protons are positive, neutrons are neutral, and electrons are negative.

• Electrons are positive, neutrons are negative, and protons are neutral.

• Protons are positive, neutrons are negative, and electrons are neutral.

• Protons are negative, Neutrons are neutral, and electrons are positive.

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