Atomic Structure and the Periodic Table

Question 1

The shortcut method for writing an electron configuration depends on the noble gas that comes before that element.

Accepted Answer

True

Question 2

The rows or periods on the Periodic Table can help you find the electron configurations for each element.

Accepted Answer

True

Question 3

The Bohr model of an atom is the most accurate, current model.

Accepted Answer

False

Question 4

The electron configuration for Hydrogen is 1s2.

Accepted Answer

False

Question 5

Since Na has an atomic mass of 22.9, this means...

Accepted Answer

Na has 11 protons and 11 neutrons

Question 6

A proton has a positive charge.

Accepted Answer

True

Question 7

Fe stand for iron, and iron has an atomic number of 26.

Accepted Answer

True

Question 8

The principle used to find the electron configurations for an atom is called the Aufbau Principle.

Accepted Answer

True

Question 9

Dalton's model of an atom is divisible and entails orbits.

Accepted Answer

False

Question 10

An Allotrope is an example of two or more physical forms of an element.

Accepted Answer

True

Question 11

Chemistry is the study of the composition of matter.

Accepted Answer

True

Question 12

Since Oxygen has an atomic number of 8, this means...

Accepted Answer

Eight protons and eight electrons

Question 13

The columns or groups on the Periodic Table can tell you the number of valence electrons for each element.

Accepted Answer

True

Question 14

Chlorine is in the seventh group on the Periodic Table. This means that Chlorine has _________valence electrons.

Accepted Answer

7

Question 15

The atomic number for an element in a neutral atom is the number of ...

Accepted Answer

protons and electrons

Question 16

The Periodic Table contains 118 elements arranged according to atomic number.

Accepted Answer

True

Question 17

The electron configuration for Carbon is 1s2 2s2 2p2 or [He] 2s2 2p2 (the shortcut method).

Accepted Answer

True

Question 18

The atomic mass of a element is the number of...

Accepted Answer

protons plus neutrons

Question 19

Valence electrons are located in the ___________ of atoms.

Accepted Answer

outer shell or shells

Question 20

The electron cloud model by Schrodinger is the most accurate model of an atom.

Accepted Answer

True

Question 21

Each of more than one hundred substances that cannot be chemically broken down into simpler substances

Accepted Answer

Element

Question 22

The Noble Gases are in group 8, which means that they have _______ valence electrons.

Accepted Answer

8

Question 23

A noble gas has a full octet or eight valence electrons in its outer shell.

Accepted Answer

True

Question 24

The smallest unit of an element

Accepted Answer

Atom

Question 25

A neutron has no charge.

Accepted Answer

True

Question 26

An atom is composed of which subatomic particles.

Accepted Answer

electrons, protons, neutrons

Question 27

The written distribution of electrons is called...

Accepted Answer

an electron configuration

Question 28

An isotope is a version of an atom that has more neutrons than protons.

Accepted Answer

True

Question 29

The electron configuration of an element can be used to label the electrons for that element.

Accepted Answer

True

Question 30

An electron has a negative charge.

Accepted Answer

True

Atomic Structure and the Periodic Table

Questions 30

Atomic Structure and the Periodic Table

Questions 30