Chemistry Midterm

Question 1

The measure of an atom’s ability to attract electrons to itself in a chemical bond is called

Accepted Answer

electronegativity

Question 2

The family name for the Group 1 elements is _____________.

Accepted Answer

alkali metals

Question 3

Atoms with fewer than 4 valence electrons tend to gain electrons when bonding.

Accepted Answer

False

Question 4

Hitting a target in the same spot but not on the bullseye is an example of....

Accepted Answer

precision

Question 5

An element’s symbol represents the element’s name, although sometimes they do not begin with the same letter.

Accepted Answer

True

Question 6

___________ molecules can be conveniently represented by Lewis structures.

Accepted Answer

covalent

Question 7

What type of bond would you expect between Na and Cl

Accepted Answer

ionic

Question 8

The only way to carry out the scientific process is to conduct experiments.

Accepted Answer

False

Question 9

There is no purely covalent bond.

Accepted Answer

False

Question 10

What is the element type of good conductors of heat and electricity; usually hard, lustrous, malleable, and ductile?

Accepted Answer

metals

Question 11

Mendeleev’s periodic table arranged elements by

Accepted Answer

Atomic mass

Question 12

___________ is determined by the weighted averages of isotopes of an element.

Accepted Answer

atomic mass

Question 13

A charged atom is called a(n) ______________.

Accepted Answer

ion

Question 14

A fraction equal to 1 that contains both the original unit and its equivalent value in a new unit is called a(n)

Accepted Answer

Conversion factor

Question 15

What is the element type of fluorine, chlorine, bromine, iodine, and astatine?

Accepted Answer

halogens

Question 16

It is improper to refer to sodium chloride as a molecule.

Accepted Answer

True

Question 17

What is the main reason chemistry developed over time?

Accepted Answer

To meet people’s needs

Question 18

Except for the transition and inner transition metals, the octet rule applies to all other elements.

Accepted Answer

False

Question 19

What is the element type of semiconductors?

Accepted Answer

metalloids

Question 20

Which is the correct order, from simplest structure to most complex, of these particles?

Accepted Answer

atom, diatomic element, molecule, compound

Question 21

The SI uses the kilogram for mass instead of the gram.

Accepted Answer

True

Question 22

An atom becomes more stable by bonding with another atom if the resulting electron configuration is like what group?

Accepted Answer

noble gases

Question 23

Molecules are to covalent bonds as formula units are to _____________.

Accepted Answer

ionic bonds

Question 24

What is the element type of helium, neon, argon, krypton, xenon, and radon?

Accepted Answer

noble gases

Question 25

An idea that is based on belief and not on proof is a(n) __________________.

Accepted Answer

presupposition

Question 26

Which of the following does not exist as a diatomic molecule?

Accepted Answer

argon

Question 27

Graphite and diamond are both composed of the same element: carbon.

Accepted Answer

True

Question 28

Who ordered the periodic table by atomic number?

Accepted Answer

Moseley

Question 29

Two different isotopes of a single element would have the same number of _________ but a different number of _________.

Accepted Answer

protons / neutrons

Question 30

The general region of space where an electron is most probably found is known as an orbital.

Accepted Answer

True

Question 31

When atoms bond, they will seek a higher, more stable energy state.

Accepted Answer

False

Question 32

The central atom in a Lewis structure is usually the atom

Accepted Answer

With the most unpaired electrons

Question 33

What is the element type of oxygen, nitrogen, carbon, and sulfur?

Accepted Answer

nonmetals

Chemistry Midterm

Questions 33

Chemistry Midterm

Questions 33