Course Outcome 2

Question 1

Arranged the elements by their valency.

Answer 1

Lothar Meyer / Meyer

Question 2

His Law of Octaves, every eight element showed similar properties when arranged in increasing atomic masses.

Answer 2

John Alexander Reina Newlands / Newlands

Question 3

He organized the chemical elements in order of increasing atomic weights.

Answer 3

Alexandre-Emile Beguyer de Chancourtois / Beguyer

Question 4

He arranged the table in increasing atomic number.

Answer 4

Henry Moseley / Moseley

Question 5

He arranged the elements by atomic mass.

Answer 5

Dmitri Mendeleev / Mendeleev / Dmitri

Question 6

As of 2018, the modern periodic table has ___ elements officially recognized by the International Union of Pure and Applied Chemistry (IUPAC)

Answer 6

118

Question 7

He arranged the elements with similar properties into a group of three. He called these groups ‘triads.’

Answer 7

Johann Wolfgang Döbereiner / Wolfgang / Döbereiner

Question 8

The ____ on the periodic chart are periods.

Answer 8

Rows

Question 9

Elements in the same group have similar chemical properties. _________ are groups.

Answer 9

Columns

Question 10

Arrange the following in decreasing atomic radius or size: Calcium, Beryllium, Magnesium, Barium.

Answer 10

2, 4, 3, 1. / 2431 / Second, Fourth, Third, First.

Question 11

Arrange the following in decreasing atomic radius or size: Calcium, Beryllium, Magnesium, Barium.

Answer 11

2, 4, 3, 1. / 2431 / Second, Fourth, Third, First.

Question 12

Size of an atom when it is an ionic particles.

Answer 12

Ionic Radius

Question 13

_______ is smaller than the parent atom.

Answer 13

Cation

Question 14

_______ is bigger than the parent atom.

Answer 14

Anion

Question 15

Ability of an atom in a chemical bond to attract electrons toward itself.

Answer 15

Electronegativity

Question 16

The theory that the atom is the smallest
fundamental particle of an element that exhibits the property of the
element.

Answer 16

Atomic Theory

Question 17

The idea that things are made up of
much smaller things that cannot be
changed nor divided

Answer 17

Atomism

Question 18

His ideas about atoms was introduced in 1803.

Answer 18

John Dalton / Dalton

Question 19

Enumeration:
What are the 3 laws of matter.

Answer 19

(no exact order)
Law of conservation of mass
Law of definite proportions
Law of multiple proportions

Question 20

What law of matter is this: The proportion of elements in any compound is always the same.

Answer 20

The Law of Definite Proportions

Question 21

What law of matter is this: Matter cannot be created nor destroyed, it can only change forms.

Answer 21

The Law of Conservation of Mass

Question 22

If two elements combine to form different compounds, the ratio of masses of the second element that react with a fixed
mass of the first element will be a simple whole numbered ratio.

Answer 22

The Law of Multiple Proportions

Question 23

Atoms with the same atomic number but different mass numbers.

Answer 23

Isotopes

Question 24

An atom or groups of atoms that has lost one or more electrons, making it positively charged, or gained one or more electrons, making it negatively charged.

(BF NI VICE)

Answer 24

Ions

Question 25

Forced that hold atoms together in a
molecules
• Ionic Bond
• Covalent Bond
• Metallic Bond

Answer 25

Intramolecular Forces (INTRA)

Question 26

Forces that exist between molecules:
• Hydrogen Bonding
• London Dispersion Forces
• Dipole – Dipole Movement

Answer 26

Intermolecular Forces (INTER)

Question 27

I LOVE YOU BABY, GOOD LUCK, YOU CAN DO THIS LOVE, mag-almusal, read, write, read, take a break, read and write.

Answer 27

I love you :)