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ACS Chemistry Final Exam Questions and Answers | 100% Pass Layout of an element (mass # & atomic #) - ️️ Correct- atomic number = - ️️ Correct-# of protons mass number = - ️️ Correct-# of protons + neutrons the number of protons in a neutral atom will equal the - ️️ Correct-# o...

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TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024

ACS Chemistry Final Exam
Questions and Answers | 100% Pass
Layout of an element (mass # & atomic #) - ✔️✔️Correct-


atomic number = - ✔️✔️Correct-# of protons

mass number = - ✔️✔️Correct-# of protons + neutrons

the number of protons in a neutral atom will equal the - ✔️✔️Correct-# of electrons

how to find the correct number of neutrons - ✔️✔️Correct-mass number - atomic number

Forms of the same elements that differ in amount of neutrons - ✔️✔️Correct-isotopes

What particle, if lost from the nucleus, would NOT cause a change in the atomic

number? - ✔️✔️Correct-a neutron because it has no charge

When alpha particles were shot at a metal foil target, most passed through without

deflections, while others deflected at large angles. What did this suggest to Rutherford?

- ✔️✔️Correct-that the atoms of the metal were mostly empty space, while the nucleus

consisted of most of the mass which included highly condensed positive particles (which

caused the deflection).

An atom has a valence shell configuration of 1s1. To which group of elements on the

periodic table does it belong? - ✔️✔️Correct-IA

alkali metals

electromagnetic spectrum - ✔️✔️Correct-

1/22

,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
The greater the wavelength of a photon..? - ✔️✔️Correct-the lower its frequency

The greater the frequency of a photon...? - ✔️✔️Correct-the shorter its wavelength

Light energy formula - ✔️✔️Correct-

What does C in the light energy formula represent? - ✔️✔️Correct-

Give the ground-state electron configuration of an atom in the second period -

✔️✔️Correct-1s2 2s1

Electrons configuration rule that states electrons do not pair until they have to. (put one

electrons in each electron domain then pair up) - ✔️✔️Correct-Hund's rule

An experimental phenomena associated with atoms having unpaired electrons - which

states such substances are attracted to magnetic fields - ✔️✔️Correct-Paramagnetism

Which drop in energy level results in the greatest emission of energy? - ✔️✔️Correct-n=2

to n=1

quantum numbers - ✔️✔️Correct-

What do the 4 quantum numbers stand for? - ✔️✔️Correct-n = energy level

l = (n-1)

ml -l to l

mn 1/2 or -1/2 (spin)

List the quantum numbers for the s, p, d, and f orbitals - ✔️✔️Correct-s 1,0,0

p 2, 1, -1-0-1

d 3, 2, -2--1-0-1-2

2/22

, TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
f 4, 3 -3--2--1-0-1-2-3

Py orbital - ✔️✔️Correct-

Which element is represented by X - ✔️✔️Correct-Chromium

What two subatomic particles have the most mass, but occupy very little of the volume

of an atom - ✔️✔️Correct-protons and neutrons

Define Isoelectronic - ✔️✔️Correct-Having the same amount of electrons

How does a sodium ion differ from a sodium atom? - ✔️✔️Correct-the sodium ion has

fewer electrons

two or more compounds with the same formula but a different arrangement of atoms in

the molecule and different properties - ✔️✔️Correct-isomer

two or more different physical forms in which an element can exist. Graphite, charcoal,

and diamond are all ________ of carbon. - ✔️✔️Correct-allotropes

What makes up an alpha particle? - ✔️✔️Correct-2 protons and 2 neutrons

What did Millikan discover from his oil drop experiments? - ✔️✔️Correct-the magnitude of

the charge on an electron

Periods vs Groups - ✔️✔️Correct-

when an atom of an electropositive atom becomes an ion it..? - ✔️✔️Correct-becomes

larger




3/22

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