Deck 3: Atomic Clues

Question 1

Which subatomic particle has the smallest mass and volume?

A) electron
B) neutron
C) nucleus
D) proton

Answer 1

electron

Question 2

Which scientist was responsible for the discovery of the nucleus?

A) Chadwick
B) Dalton
C) Rutherford
D) Thomson

Answer 2

Rutherford

Question 3

Argon has three isotopes: Argon-36, Argon-38, and Argon-40. Which of these isotopes has the highest natural abundance?

A) Argon-36
B) Argon-38
C) Argon-40

Answer 3

Argon-40

Question 4

Which two Greek philosophers had conflicting thoughts on the nature of the atom?

A) Galileo and Aristotle
B) Democritus and Dalton
C) Aristotle and Democritus
D) Democritus and Leucippus

Question 5

The abbreviated electron configuration for Cs is _____________________.

Question 6

Chromium has four isotopes as shown in the table.
Calculate the atomic mass of chromium. Include all digits in your answer.

Question 7

Calculate the energy emitted from a potassium atom as it releases a photon of light with a frequency of 5.99 × 10¹⁵ Hz.

Question 8

Explain the difference between the law of conservation of mass and the law of definite proportions.

Question 9

Which of the following statements is NOT a part of Dalton's atomic theory?

A) All matter is made up of tiny, indivisible particles called atoms.
B) Atoms cannot be created, destroyed, or transformed into other atoms in a chemical reaction.
C) All atoms of a given element contain protons, neutrons, and electrons.
D) Atoms combine in simple, whole-number ratios to form compounds.

Question 10

Neon has three isotopes as shown in the table.
Calculate the atomic mass of neon. Include all digits in your answer.

Question 11

The full electronic configuration for Br is _____.

Question 12

Which of the following configurations is the electron configuration for Cr?

A) [Ar]4s¹3d⁵
B) [Ar]3d⁴4s²
C) [Ar]3d³4s²
D) [Ar]3d⁶

Question 13

Which type of spectrum is produced when light is passed through a prism?

A) continuous
B) absorption line
C) emission line
D) none of the above

Question 14

Explain how a line spectrum is made.

Question 15

The full electronic configuration for Ca is _____.

Question 16

Lanthanum has two isotopes: La-138 and La-139. Which of these isotopes has the highest natural abundance?

A) La-138
B) La-139

Question 17

Calculate the energy emitted from a neon atom as it releases a photon of light with a wavelength of 9.582 nm.

Question 18

How many protons are there in In-113?

A) 49
B) 64
C) 65.8
D) 113
Enter the appropriate word(s) to complete the statement.

Question 19

The abbreviated electron configuration for xenon is _________________.