Atomic Structure and the Periodic Table - Test Test

Question 1

Which of these statements best identifies the particle that is labeled with an cap x ?

Revolt · Accepted Answer

A: It is either a proton or a neutron.

Question 2

What is the atomic number of zirconium?

Revolt · Accepted Answer

B: 40

Question 3

Which statement about Niels Bohr’s atomic model is true?

Revolt · Accepted Answer

B: Each orbit has a specific energy level.

Question 4

J.J. Thompson is credited with discovering the

Revolt · Accepted Answer

D: electron.

Question 5

Which of Dalton's ideas about the atom did J.J. Thomson's experiment disprove?

Revolt · Accepted Answer

D: It disproved that atoms are indivisible.

Question 6

Which element has the largest atomic radius?

Revolt · Accepted Answer

C: Sb

Question 7

Which of these symbols would be included in the noble gas notation for an element that had valence electrons in the 5 s subshell?

Revolt · Accepted Answer

D: Kr

Question 8

Who was the first to propose the existence of atoms?

Revolt · Accepted Answer

D: Democritus

Question 9

A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it?

Revolt · Accepted Answer

D: Na

Question 10

Which pure substance can be classified as an element?

Revolt · Accepted Answer

C: cap h sub 2

Atomic Structure and the Periodic Table - Test Test Answers