H Chemistry Review - Atoms & Periodic Table

In an atom, an orbital represents

• the most probably location of a proton

• the most probable location of an electron

• the least probably location of a neutron

• photons emitted as electrons move to lower energy levels

What quantity is the same among atoms of the same element?

• mass number

• atomic number

• number of neutrons

• number of nucleons

Which elements have the most similar chemical properties?

• Ge, As, and Sb

• Mn, Fe, and Co

• O, S, and Se

• P, S, and Cl

Tags

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What is the mass number of an atom that has 9 protons, 11 neutrons, and 9 electrons?

• 18

• 20

• 9

• 11

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

• Electrons, Protons, & Neutrons

Tags

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Electrons in the outermost energy level are called?

• Valence Electrons

• Outer Electrons

• Excess Electrons

• Premier Electrons

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How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

• 35

How many valence electrons does Neon (Ne) have?

• 1

• 5

• 8

• 7

Tags

NGSS.HS-PS1-1

Which types of elements have a full outer shell of Valence Electrons?

• Metals

• Noble Gases

• Metalloids

• Non-Metals

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When an electron jumps to an energy level that is farther from the nucleus, which of the following happens?

• energy is absorbed and light is not produced

• energy is absorbed and light is produced

• energy is released and light is not produced

• energy is released and light is produced

Tags

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