Chemistry Quiz
What is the charge of the element? Protons = 11 Neutrons = 13 Electrons = 10
+1
Which group in the Periodic Table contains the most reactive metals?
1 (because they only have one electron on their outermost shell)
Examples of compounds
1. CO(g) 2. H2O 3. NH3
Use the following information to answer this question about an unknown element. Protons = 11 Neutrons = 13 Electrons = 10 What is the atomic number of the element?
11
To which group do the alkaline earth metals belong?
2
What is the atomic number of an atom that forms an ion with 18 electrons and a charge of 2+?
20
What is the mass number of an atom with 9 protons, 11 neutrons, and 9 electrons?
20
What is the mass number of the element? Protons = 11 Neutrons = 13 Electrons = 10
24
What is the total number of valence electrons in an atom with a total of 13 protons?
3
A certain element contains 18 protons and 20 neutrons. The mass number is...
38
If an atom has a mass number of 11 and an atomic number of 5, how many protons are in the nucleus?
5
An element has an atomic number of 63 and a mass number of 155. How many protons are in the nucleus of the element?
63
What is the total number of hydrogen atoms required to form 1 molecule of C3H5(OH)3
8
A neutral atom may contain 8 protons...
8 electrons and 9 neutrons
Diatomic molecule
A compound consisting of two similar atoms. example: NCl and O2, N2, and H2
How can you create an ion from an atom without creating a new element?
Adding or subtracting electrons from an atom
Group 2 in the Periodic Table is known as the...
Alkali Earth Metals
Group 1 in the Periodic Table is known as the...
Alkali metals
What statement explains why elements of the alkali metal family are highly reactive?
Alkali metals are easily ionized. (1 valence electron)
Ion
Any element that contains a different number of protons and electrons resulting in either a positively or negatively charged atom
Element that is not a metalloid...
Arsenic
What determines the order of placement of the elements of the modern Periodic Table?
Atomic number
What changes if I add a proton to an atom?
Atomic number, mass number and charge
Which type of change must occur to form a compound?
Chemical change
What is an element in the seventh group?
Chlorine (Cl)
What is an element in the fourth period?
Chromium (Cr)
What does the liquid phase have when different shaped containers hold the same amount of fluid?
Definite volume but no definite shape
Neutron
Electrically neutral (neutral charge)
The energy levels around the nucleus of an atom contain what?
Electrons
Which of the following atoms has the greatest number of valence electrons? O, C, F, or N
F
In a gas state how are the molecules spread out
Far apart from one another; more far apart then in a liquid and in a solid
What are the vertical columns in the periodic table called?
Grous
Group 7 in the Periodic Table is known as the...
Halogens
How did Mendeleev arrange the elements to form his periodic table?
He placed elements in an order based upon the position of their electrons
An atom of which element has a complete outermost shell?
He, Ne, and Ar
In the periodic table, periods are...
Horizontal
In Rutherford's model of the atom, the positive charge
Is concentrated at the center of the atom
What statement describes the nucleus of an aluminum atom?
It has a charge of +13 and is surrounded by a total of 13 electrons.
Atoms become positive ions by...
Losing electrons
Sodium (Na) can be classified as a...
Metal
With the exception of Aluminum, elements that touch the zig zag line on the periodic table are...
Metaloids
The majority of the elements in the Periodic Table are
Metals
According to the Rutherford model of the atom, an atomic nucleus contains what?
Most of the atom's mass and all of the atom's positive charge
Group 18 in the Periodic Table is known as the...
Noble gasses
An element located at Group 18 and Period 4 would be classified as which type of substance?
Non-metals
Elements to the right of the zig zag line on the periodic table are...
Nonmetals
What are the horizontal rows on the periodic table called?
Periods
What element is the most chemically reactive?
Potassium (K)
One element is distinguished from another by the number of...
Protons
Give an example of an isotope of an element that has 6 protons, 6 neutrons and 6 electrons?
Protons = 6 Neutrons = 7 Electrons = 2
What element is in Group 2 and Period 7 of the Periodic Table?
Radium
Which is an example of a chemical change?
Rusting of a nail
What is the identity of the element described below Protons = 11 Neutrons = 13 Electrons = 10
Sodium (Na)
Which elements belong to the same group?
Sodium and potassium
In what phase are particles generally the closest?
Solid
What statement best explains why elements in the same family of the periodic table have similar bonding properties?
The elements have similar valence electron configurations
What nucleus has the greatest mass?
The nucleus with the most neurons and protons
Mass number
The number of protons and neutrons in an element
What is true about a proton and an electron?
They have different masses and different charges
Groups 3-12 in the Periodic Table are known as the
Transition metals
In the periodic table, groups are...
Vertical
What element is in group 4 and period 5?
Zr
Which of these atoms has the greatest mass? a. hydrogen c. iron d. lead e. uranium
e
Which of these atoms has the greatest number of electrons? a. helium b. carbon c. iron d. gold e. uranium
e