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Honor's Atomic Structure & Average Atomic Mass Quiz (10/23/2024)

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Last updated 11 months ago
13 questions
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Question 1
1.
Atoms are __________ because they have the same number of protons and electrons.

Protons have a __________ charge, electrons have a __________, and neutrons are__________.
Question 2
2.

Question 3
3.
The estimated average atomic mass of Silicon could be __________ amu because the __________ abundant isotope is __________.
Question 4
4.

An atom has 7 protons, 7 electrons, and 8 neutrons. What is its atomic mass?

Question 5
5.

If an element X has two isotopes: X-35 (75% abundance) and X-37 (25% abundance). If the atomic mass of X-35 is 34.9689 and X-37 is 36.9659, calculate the average atomic mass.

Question 6
6.

Given the isotope of Oxygen-18, how many neutrons does this isotope have?

Question 7
7.

Given the isotope of Carbon-12, how many neutrons does it contain?

Question 8
8.

How many neutrons are present in an atom of Oxygen-18 (O-18) if it has 8 protons?

Question 9
9.

An atom of Fluorine-19 (F-19) has 9 protons. Determine the number of neutrons in this atom.

Question 10
10.
There are _______ neutrons in this lithium atom.
Question 11
11.

Question 12
12.

Question 13
13.

The diagram of an atom below shows two regions, the nucleus (1) and the area surrounding the nucleus (2).
Protons in region 1, neutrons and electrons orbiting in region 2
Electrons and neutrons in region 1, protons orbiting in region 2
Protons and electrons in region 1, neutrons orbiting in region 2
Protons and neutrons in region 1, electrons orbiting in region 2
Which particles have almost the same mass?
All three particles
Proton and electron
Proton and neutron
Electron and neutron
Which of the following represents a pair of isotopes?
14C and 12C
23Na and 23Na+
14C and 14N
16O and 16O2-
If an atom has 17 protons, 18 neutrons, and 17 electrons, what is the mass of this atom?
17
35
18
52