Issues 5th Edition: 5th-Edition-Goodenough
A+
1)
A neutral atom must contain ________.
1)
_______
A)
an equal number of protons, neutrons, and electrons
B)
an equal number of neutrons and electrons
C)
an equal number of protons and electrons
D)
an equal number of protons and neutrons
2)
An element with more or fewer neutrons than the same element as it appears on the periodic table is known as which of the
following?
2)
_______
A) ion
B)
buffer
C)
isomer
D)
isotope
3)
Water has very special properties that not all chemical share. Which of the following is not a property of water?
3)
,_______
A) prevents wide temperature
fluctuations
B)
interacts with lots of different substances
C) nonpolar
D)
requires a lot of energy to evaporate it
4)
You have information about a particle that contains 7 protons, 8 neutrons, and 8 electrons. Which of the following statements would
be true?
4)
_______
A)
It has an atomic weight of 23.
B)
It has an atomic number of 15. C)
It has 8 electrons in its outermost shell.
D)
It is an ion.
5)
Oxygen, with an atomic number of 8, is a neutral atom and has ________ electrons in the first electron shell and ________ electrons
in the second electron shell.
5)
_______
A)
1; 7
B)
3; 5
C)
4; 4
D)
2; 6
E)
, 5; 3
6)
The compound magnesium chloride (MgCl2) turns into one Mg2+ and two Cl- when placed in water. You can guess that the Mg and
Cl atoms are held together normally by a(n) ________ bond. 6)
_______
A) covalent
B)
ionic
C)
electronegative
D)
hydrogen
7)
The Cl ion has a single negative charge and the atomic number of 17. How many electrons are on its innermost shell?
7)
_______
A) 17
B)
2
C)
9
D)
18
8)
Which of the following monomers is not paired correctly?
8)
_______
A) nucleotides-nucleic acids
B)
amino acids-proteins
C) glucose-carbohydrates
D)