Topic 1.1 Matter & Change & Topic 2.1 The nuclear atom
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
List the state of matter for (s).
Question 16
16.
Using the equation, A+B --> C + D, label part A+B.
Question 17
17.
State the relative mass and charge of a neutron.
Question 18
18.
Define Mass number (A)
Question 19
19.
Define Atomic number (Z)
Question 20
20.
Deduce the symbol for an atom of phosphorus with 18 electrons and 15 neutrons. (Write the symbol)
Question 21
21.
Define the term isotope.
Question 22
22.
State the number of protons, neutrons, and electrons in 4722Ti+2
Question 23
23.
The element titanium has two isotopes, 4722Ti and 5022Ti, and a relative atomic mass of 47.87. State and explain which is the more abundant isotope.
Question 24
24.
Titanium exists as several isotopes. The mass spectrum of a sample of titanium gave the following data. Calculate the relative atomic mass of titanium to two decimal places.
Question 25
25.
Boron exists as two isotopes, 10B and 11B. The relative atomic mass of boron is 10.81. Calculate the percentage abundance of each isotopes.
Question 26
26.
Calculate the relative atomic mass based on the mass spec data provided below.
Which process happens as a substance changes from a gaseous state to a solid state?
condensing
deposition
freezing
sublimation
Which state of matter does not have a fixed shape or volume?
gas
liquid
solid
all of the above
Which of the following is an element?
Air
Calcium
Potassium chloride
CO2
Which of the following are usually found in the nucleus of an atom?
neutrons only
electrons and neutrons only
protons and neutrons only
protons, neutrons and electrons
Which of the following statements is true about electrons?
The particle has no electrical charge.
The particle that is gained or lost when forming ions.
The particle is found in the nucleus.
The number of these particles in the nucleus is equal to the atomic number.
Which statement about the neutral isotopes of chlorine is correct?
the number of neutrons, the number of electrons, and the mass number are the same
the number of neutrons and the number of electrons are the same, the mass number is different
the number of neutrons is the same, the number of electrons and the mass number are different
the number of neutrons and the mass number are different, the number of electrons is the same
Which is correct for the chromium isotope 5324Cr?
24 neutrons and 29 nucleons
24 protons and 29 neutrons
24 protons and 29 nucleons
24 electrons and 53 neutrons
Which of the following is an isotope of 2412Mg?
2612Mg
2412Mg+2
1224Mg
4213Mg
What is the correct number of each particle in a potassium ion, 40K+1
protons: 19, neutrons: 40, electrons: 18
protons: 19, neutrons: 21, electrons: 18
protons: 19, neutrons: 21, electrons: 20
protons: 19, neutrons: 40, electrons: 20
Consider the composition of the species R, S, T, and U below. Which species is a cation?
R: 9 protons, 10 neutrons, 10 electrons
S: 11 protons, 12 neutrons, 11 electrons
T: 12 protons, 12 neutrons, 12 electrons
U: 13 protons, 14 neutrons, 10 electrons
In which set do all the species contain more electrons than neutrons?
14N, 16O, 11C
14N, 16O, 11C4-
14N3-, 16O2-, 11C
14N3-, 16O2-, 11C4+
Bromine exists as the isotopes, 79Br and 81Br. What is the percentage of 79Br in a sample with a relative atomic mass of 79.9?
55%
50%
45%
40%
A sample of element X contains 69% of X-63.0 and 31% of X-65.0. What is the relative atomic mass of X in this sample?
69.0
65.0
63.6
63.0
What is the relative atomic mass of an element with the mass spectrum in Figure 17?