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SNC1D
CHEMISTRY PART 2 QUIZ
QUIZ#1
PART A: MULTIPLE CHOICE (10 MARKS)
1
2
3
4
5
6
7
8
9
10
Choose the best response in each case and place your answer in the appropriate space in the box above.
1.
Atoms of elements:
6.
(a) are always charged either positive or negative.
fluorine
(b) have an overall positive charge.
2.
How many subatomic particles are in an atom of
?
(c) have an overall negative charge.
(a) 9
(b) 10
(d) are neutral overall.
(c) 19
(d) 28
7.
The atomic number of an element tells you:
If a neutral atom of an element has 19 electrons and
(a) the number of protons in its nucleus.
14 neutrons, its atomic number is:
(b) the number of protons in its shells.
(a) 5
(b)
14
(c) the number of neutrons in its nucleus.
(c) 19
(d)
33
(d) the number of electrons in its nucleus.
8. How many neutrons are in a sodium atom
3.
(a) protons in the nucleus.
(a) 11
(b)
12
(b) neutrons in the nucleus.
(c) 23
(d)
34
(c) protons and neutrons together.
9.
(d) all the particles in the atom .
4.
How many electrons are in the 3rd, 2nd, and 1st shell for
an atom with a total of 15 electrons?
Atoms of different elements must have:
(a)
2,8,5
(b) 8,2,5
(a) the same number of neutrons in their nuclei.
(c)
2,5,8
(d) 5,8,2
(b) different numbers of protons in their nuclei.
10. An atom becomes an ion with a charge of 2- when it:
(c) the same number of electrons in their orbits.
5.
?
The mass number of an atom is the number of:
(d) different mass numbers.
(a) gains 2 electrons
Which line gives the correct number of electrons,
(c) gains 2 protons
(b) loses 2 neutrons
protons, and neutrons in an atom of aluminum
(a)
13, 13, 14
(b)
14, 27, 13
(c)
13, 14, 13
(d)
14, 13, 27
?
(d) loses 2 electrons
PART B: SHORT ANSWER (13 MARKS)
{5} 11. Using Lewis-Dot Diagrams, show how the following elements would bind together:
a)
NH3
b) Will NH3 create an ionic bond or covalent bond?
{8} 12. Using Bohr-Rutherford Diagrams, show how the following elements would bind together:
a) lithium and fluorine
b) oxygen and 2 hydrogen atoms