Properties and Structure of Atoms | Baamboozle - Baamboozle

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Why do elements in group 0/8 do not form compounds?

They already have full outermost shell of electrons

Why are atoms electrically neutral?

# positively charged particles (protons) = # negatively charged particles (electrons)

What was Rutherford's Experiment called?

Gold Foil Experiment

All types of electromagnetic radiation move through vacuum at a speed of

3 x 10^8 m/s

Energy is ____ when an electron moves from higher to lower energy level.

emitted

DISCUSS how would potassium atoms form bonds with another element

Potassium has 1 valence electron; it will tend to lose 1e and become K+

Silver has two isotopes: Ag-107 and Ag-109. Their respective % abundances are 51.8% and 48.2%. Calculate the relative atomic mass of silver. (3 DP)

107.964

When an electron moves down from higher energy level to n=3, what kind of EM radiation is emitted?

infrared

Give the five stages in mass spectrometry

vaporization, ionization, acceleration, deflection, detection

Which group 1 element will lose electron easier: sodium or rubidium?

rubidium

What does the term "isotope" mean?

Isotopes of a given element have the same number of protons but different numbers of neutrons in each atom

Which scientist proposed the "Plum Pudding Model"?

J.J. Thomson

DISCUSS how would calcium atoms form bonds with another element

Calcium has 2 valence electrons; it will tend to lose 2e and become Ca2+

Electrons orbit the nucleus in orbits that have a set size and energy. They are said to be “____"

quantized

Which scientist proposed the "Billiard Ball Model"?

John Dalton

DISCUSS how would sulfur atoms form bonds with another element

Sulfur has 6 valence electrons; it will tend to gain 2e and become S2-

Which group 7 element will gain 1 electron easier: chlorine or iodine?

chlorine

The number of protons and neutrons in the nucleus of the atom is known as the:

mass number

Define: Relative Atomic Mass

weighted average of the relative masses of the isotopes relative to C-12

What are shown on the electron dot diagrams?

valence electrons

Copper has two isotopes: Cu-63 and Cu-65. Their respective % abundances are 69.17% and 30.83%. Calculate the relative atomic mass of silver. (3 DP)

63.617

When an electron moves down from higher energy level to n=1, what kind of EM radiation is emitted?

UV

What is used to accelerate the cations in the mass spectrometer?

electric field or charged plates

According to J. Dalton: "All atoms of a given element are identical in ____ and ____."

mass, properties

In the magnetic field, the higher the mass, the ____ the deflection

lower / smaller

Complete the statement from J. Dalton's theory: "All matter is made of atoms. Atoms are ____ and ____."

indivisible, indestructible

Complete the statement: "The size of the ____ is very small as compared to the size of the atom."

nucleus

As the vaporized sample enters the mass spectrometer, what is the first stage that they will go through?

ionization

In their experiment, what did Rutherford's team use to fire through the gold foil?

alpha particles

Give two working principles of a mass spectrometer

(any two) separate the individual isotopes of given element, determine the mass of each isotope, calculate the relative abundance of each isotope

What happens in the ionization stage of mass spectrometry?

an electron is removed from the atom, resulting to a positive ion

Why do the atoms need to be vaporized when being analyzed in the mass spectrometer?

to isolate the particles; for each to be free from attraction/repulsion with another atom

What does the octet rule state?

The octet rule says that atoms are very stable when they have 8 electrons in their outer shell.

Energy is ____ when an electron moves from lower to higher energy level.

absorbed

Bohr's atomic model is also known as:

Planetary Model

Neon has three isotopes: Ne-20, Ne-21, and Ne-22. Their respective % abundances are 90.48%, 0.27%, and 9.25%. Calculate the relative atomic mass of Neon. (3 DP)

20.188

State the relationship between wavelength, frequency and energy

the longer the wavelength, the smaller the frequency, the smaller the energy

DISCUSS how would bromine atoms form bonds with another element

Bromine has 7 valence electrons; it will tend to gain 1e and become Br-

Isotopes of the same element have ____ physical properties and ____ chemical properties.

different (physical properties), same (chemical properties)

This scientist is credited for the discovery of electrons

J.J Thomson

When an electron moves down from higher energy level to n=2, what kind of EM radiation is emitted?

visible light

In the magnetic field, the higher the charge, the ____ the deflection

higher / bigger

The number of protons in an atom is also known as the:

atomic number