Gen Chem L5-Atoms, Molecules and Ions

Question 1

What is the fundamental unit of matter?

Answer 1

ATOM

Question 2

This is where the electrons orbit.

Answer 2

ELECTRON CLOUD

Question 3

Three-dimensional regions where electrons are
most likely to be found in an atom.

Answer 3

ATOMIC ORBITALS

Question 4

A Greek Philosopher who believed that matter is made of tiny particles (atoms) that cannot be divided or cut any further.

Answer 4

DEMOCRITUS

Question 5

He proposed a model of the atom that is called the “Plum Pudding” model.

Answer 5

J.J THOMSON

Question 6

He reasoned that all of an atom’s positively charged particles were contained in the nucleus. The negatively charged particles were scattered outside the nucleus around the atom’s edge.

Answer 6

RUTHERFORD

Question 7

According to him electrons move in definite orbits
around the nucleus, much like planets circle the sun.

Answer 7

NIELS BOHR

Question 8

He Found out that Electrons live like “clouds” or no distinct orbits Electron location can not be predicted.

Answer 8

SCHRODINGER

Question 9

2 or more atoms which are bonded.

Answer 9

MOLECULE

Question 10

Are atoms or molecules that have charges.

Answer 10

IONS

Question 11

It contain only two atoms and normally occur in nature.

Answer 11

DIATOMIC MOLECULES

Question 12

It contains three or more atoms.

Answer 12

POLYATOMIC MOLECULES

Question 13

If the atoms are the same in element they are?

Answer 13

HOMONUCLEAR

Question 14

If the atoms are in different in elements.

Answer 14

HETERONUCLEAR

Question 15

Ions with Positive charge and this is a metal

Answer 15

CATIONS

Question 16

Ions with Negative charge and this is a non-metals

Answer 16

ANION