Chapter 5 Chemistry Test Balentine

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Which group of elements was discovered by Strutt and Ramsay?

noble gasses

To which group does hydrogen belong?

none of the above

If n stands for the highest occupied energy level, the outer configuration for all Group 1 elements is

ns1

The periodic law states that the physical and chemical properties of elements are periodic functions of their atomic

numbers

A horizontal row of blocks in the periodic table is called a(n)

period

Refer to the figure above. Potassium and bromine belong to

period 4

A repeating pattern is referred to as

periodic

The periodic law allows some properties of an element to be predicted based on its

position in the periodic law

Elements in a group or column in the periodic table can be expected to have similar

properties

Mendeleev did not always list elements in his periodic table in order of increasing atomic mass because he grouped together elements with similar

properties

The number of valence electrons in Group 1 elements is

1

The atomic number of lithium, the first element in Group 1, is 3. The atomic number of the second element in this group is

11

Period 4 contains 18 elements. How many of these elements have electrons in the d sublevel?

16

An element that has the electron configuration [Ne]3s23p5 is in Group

17

Because the first energy level contains only the 1s sublevel, the number of elements in this period is

2

An element that has the electron configuration [Ne]3s23p5 is in Period

3

Bromine, atomic number 35, belongs to Group 17. How many electrons does bromine have in its outermost energy level?

7

Which represents a neutral atom acquiring an electron in a process where energy is released?

A + e-® A- + energy

Evidence gathered since Mendeleev's time indicates that a better arrangement than atomic mass for elements in the periodic table is an arrangement by

Atomic number

The person whose work led to a periodic table based on increasing atomic number was

Moseley

The elements in Group 1 are also known as the

alkali metals

The group of soft, silvery, reactive metals, all of which have one electron in an s orbital, is known as the

alkali metals

A negative ion is known as a(n)

anion

The most characteristic property of the noble gases is that they

are largely unreactive

One-half the distance between the nuclei of identical atoms that are bonded together is called the

atomic radius

The ionization energies required to remove successive electrons from one mole of calcium atoms are 590 kJ/mol, 1145 kJ/mol, 4912 kJ/mol, and 6474 kJ/mol. The most common ion of calcium is probably

ca2+

When an electron is added to a neutral atom, a certain amount of energy is

either released or absorbed

A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound is called

electronegativity

Neutral atoms with an s2p6 electron configuration in the highest energy level belong to which block of the periodic table?

f block

The element that has the greatest electronegativity is

fluorine

Across a period in the periodic table, atomic radii

gradually decreases

Magnesium, atomic number 12, has the electron configuration [Ne] 3s2. To what group does magnesium belong?

group 2

Strontium's highest occupied energy level is 5s2. To what group does strontium belong?

group 2

Titanium, atomic number 22, has the configuration [Ar] 3d2 4s2. To what group does titanium belong?

group 4

Among the d-block elements, as atomic radii decrease, electronegativity values

increase

Across a period in the periodic table, ionization energy generally

increases

As the atomic numbers of the metals of Group 1 increase, the ionic radii

increases

Down a group in the periodic table, atomic radii generally

increases

The group of 14 f block elements in the sixth period is the

lanthanides

Elements in the s and p blocks of the periodic table are called

main group elements

Elements in which the d-sublevel is being filled have the properties of

metals

The first member of the noble gas family, whose highest energy level consists of an octet of electrons, is

neon

In Period 3 there are 8 elements. What sublevel(s) is (are) being filled?

s and p

The first electrons to be removed when d-block elements form ions are the

s electrons

Identify the sublevels in a period that contains 32 elements.

s,p,d,f

What are the radioactive elements with atomic numbers from 90 to 103 called?

the actinides

What are the elements with atomic numbers from 58 to 71 called?

the lanthanides

Which is the best reason that the atomic radius generally increases with atomic number in each group of elements?

the number of occupied energy levels increases

The principle that states that the physical and chemical properties of the elements are periodic functions of their atomic numbers is

the periodic law

The electrons available to be lost, gained, or shared when atoms form compounds are called

valence electrons


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