HSHS Chem SOL Session #2: The Atom

​Atomic Structure

​Atomic Structure

​Atomic Structure

​Atomic Structure

​Atomic Structure

Multiple Choice

An element has an electron configuration of 1s²2s²2p⁶3s² Which of these will be in the same group as this element?

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²4s²

• 1s²2s²2p⁶3s²

• 1s²2s²2p⁶3s²3p⁶

Multiple Choice

Neils Bohr's contribution to modern atomic theory was the proposition that -

• each atom has a specific number of positive charges

• an atom has electrons in discrete energy levels

• electrons have a definite mass that can be computed

• atomic mass is determined by the number of protons
  and neutrons in an atom

Multiple Choice

Which of these conclusions can be drawn from Rutherford's experiment?

• Each atom contains electrons.

• The nucleus of the atom can be split

• Each atom contains protons

• Atoms are mostly empty space

Multiple Choice

How many protons, neutrons, and electrons are in a neutral atom of sodium?

• 11 p⁺, 12 n⁰, 11e^-

• ^-11 p⁺, 11 n⁰, 12e^-

• 12 p⁺, 11 n⁰, 12e^-

• 12 p⁺, 11 n⁰, 11e^-

Multiple Choice

Which of these is an ion with a charge of 1+?

• 1

• 2

• 3

• 4

Multiple Choice

Which of the following orbital diagrams is incorrect because it violates Hund's rule?

Multiple Choice

Cations are formed when neutral atoms lose -

• electrons

• protons

• neutrons

• positrons

Multiple Choice

The atomic number corresponds to an atom's number of -

• protons

• electrons

• neutrons

• positrons

Multiple Choice

Which represents an atom of calcium?

• 1

• 2

• 3

• 4

Multiple Choice

A neutral atom of calcium has 20 electrons. Calcium forms a 2+ ion. How many electrons does a calcium ion have?

• 2

• 18

• 20

• 22

Multiple Choice

The data above indicated that

• A and B are isotopes of the same element

• A and B are different elements

• A has a greater charge than B

• A is more reactive than B