CP Semester 1 Review

The number of protons is equal to the number of electrons for an atom. This means an atom is-

• electrically neutral

• electrically positive

• electrically negative

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What determines the identity of the atom?

• protons

• neutrons

• electrons

• isotopes

Which subatomic particle has a neutral charge?

• protons

• neutrons

• electrons

• isotope

When an atom loses or gains electrons to become more stable it becomes an:

• ion

• isotope

• atom

• average

Which particles form the nucleus of the atom?

• protons and electrons

• protons and neutrons

• electrons and ions

• electrons and neutrons

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Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

• numbers, rows

• masses, rows

• masses, column

• numbers, column

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NGSS.HS-PS1-1

__________ would have some characteristics of metals and some characteristics of nonmetals.

• Gold
• Sodium
• Arsenic
• Bismuth

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Metals (select all that apply)

• are found on the right side of the periodic table.

• are found on the left side of the periodic table.

• are good conductors of heat and electricity.

• are brittle.

• are malleable and ductile.

Nonmetals (select all that apply)

• are found on the right side of the periodic table.

• are found on the left side of the periodic table.

• are good conductors of heat and electricity.

• are brittle.

• can be solid, liquids, or gases at room temperature.

Which element is found in group 2, period 6?

• Oxygen (O)

• Barium (Ba)

• Selenium (Se)

• Carbon (C)

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