M1U3: CHEMICAL SYMBOLS, NOTATIONS & NOMENCLATURE

Question 1

naming of substances is called

Answer 1

CHEMICAL NOMENCLATURE

Question 2

Latin words for name and to call?

Answer 2

NOMEN and CALARE

Question 3

how many known chemical substances are there?

Answer 3

13 MILLION

Question 4

rules for chemical nomenclature are based on?

Answer 4

DIVISION OF SUBSTANCES INTO DIFFERENT CATEGORIES

Question 5

substance that cannot be broken down into new substances

Answer 5

ELEMENTS

Question 6

how many elements are known?

Answer 6

118

Question 7

Earth’s crust consists of only five elements. These are?

Answer 7

OXYGEN, SILICON, ALUMINIUM, IRON, AND CALCIUM

Question 8

elements that account for over 90% of the mass of the human body

Answer 8

OXYGEN, CARBON, HYDROGEN

Question 9

table in which the symbol for each element is enclosed in a box

Answer 9

PERIODIC TABLE

Question 10

TRUE OR FALSE:
elements are arranged in horizontal rows so that closely related elements are grouped together

Answer 10

FALSE - horizontal rows - vertical columns

Question 11

number of protons in an atom that determines the atom’s identity

Answer 11

ATOMIC NUMBER

Question 12

number of protons and neutrons together

Answer 12

MASS NUMBER

Question 13

have same elements but different neutrons, consequently in mass

Answer 13

ISOTOPES

Question 14

TRUE OR FALSE:
atomic number (number of protons) does not change

Answer 14

TRUE

Question 15

if electrons are removed or added to a neutral atom, a charged particle called _____ is formed.

Answer 15

ION

Question 16

on with a positive charge

Answer 16

CATION

Question 17

negatively charged ion

Answer 17

ANION

Question 18

net charge on an ion is represented by a?

Answer 18

SUPERSCRIPT

Question 19

charged particles which are combined and have a common charge

Answer 19

POLYATOMIC IONS

Question 20

composed of a single atom

Answer 20

MONOATOMIC IONS

Question 21

TYPES OF IONS:
Na+, K+, Cl–

Answer 21

MONOATOMIC IONS

Question 22

TYPES OF IONS:
NH4+, NO2–, NO3–

Answer 22

POLYATOMIC IONS

Question 23

each element is represented on the periodic table by a?

Answer 23

SYMBOL

Question 24

positive charge is given by a Roman numeral in parenthesis following the name of the meta, this method is called the?

Answer 24

STOCK METHOD

Question 25

method used to apply the ending –ous or –ic is?

Answer 25

CLASSICAL METHOD

Question 26

–ous represents the?

Answer 26

LOWER CHARGED IONS

Question 27

–ic represents the?

Answer 27

HIGHER CHARGED IONS

Question 28

ending –ous or –ic is only applied on ions that are?

Answer 28

POSITIVE (cations)

Question 29

ending –ide, –ate, –ite is only applied on ions that are?

Answer 29

NEGATIVE (anions)

Question 30

polyatomic anions containing oxygen are called?

Answer 30

OXYANIONS

Question 31

ending –ate is used for?

Answer 31

MOST COMMON OXYANION OF AN ELEMENT

Question 32

ending –ite is used for?

Answer 32

OXYANION THAT HAS THE SAME CHARGE BUT LESS O ATOM

Question 33

TYPES OF CHEMICAL BONDING:
transfer of electrons; metal & non-metal

Answer 33

IONIC BONDING

Question 34

TYPES OF CHEMICAL BONDING:
sharing of electrons; non-metal & non-metal

Answer 34

COVALENT BONDING