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Atomic Structure
Page 8
Questions (4,403)
An electron drops from the fourth energy level, in an atom to the third level and then to the first level. Two frequencies of
1 answer
asked by
Jarrad Schomaker
859 views
Why is carbon said to provide a “backbone” in many molecules?(1 point)
Carbon atoms have full shells of electrons, allowing
4 answers
asked by
Mark
798 views
The Composition of Atoms Quick Check
Science 8 Q1 / Matter Interactions Which statement about an atom is correct?(1 point) The
7 answers
asked by
iuytredszdxcbnmjkjiu876543wq2asZxbnmkoiu8y76543wq2
456 views
One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more
strongly than oxygen does. The
2 answers
asked by
Johannie
552 views
The radius of a hydrogen atom is 0.0000000529177 of a millimeter. Express this number as an approximation.(1 point)
Responses
28 answers
asked by
Anonymus
332 views
1. The mass number of an atom is obtained by totaling the number of_____and____.
a. electrons and protons b. electron and
17 answers
asked by
Ember Lovet
2,001 views
Potassium’s atomic number is 19, and its atomic mass is approximately 39. How many neutrons does potassium have?(1 point)
Respo
2 answers
asked anonymously
92 views
what is an atom
4 answers
asked by
h
375 views
Which statement correctly compares the number of protons and electrons in atoms of rubidium (Rb) and calcium (Ca)?
(1 point)
2 answers
asked anonymously
191 views
The volume of a single niobium atom is 9.46E-24 cm3. What is the volume of a niobium atom in microliters?
5 answers
asked by
love
2,757 views
Check answers?
1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are
2 answers
asked by
Mary
820 views
How many core electrons are there in a ground state phosphorus atom?
4 answers
asked by
Ena
1,473 views
Indium has two naturally occurring isotopes and an atomic mass of 114.818 amu. In- 113 has a mass of 112.904 amu and an
4 answers
asked by
Jennifer
3,892 views
how many electrons are found in the electron cloud of an atom whose K,L and M shells are full?
3 answers
asked by
Anonymous
552 views
which of the following molecules shows two atoms of hydrogen (H)?
4 answers
asked by
Anonymous
381 views
Which change is likely to happen to an atom of the element strontium (Sr) during bonding?
It will give up electrons, forming a
5 answers
asked by
Fa11enAnge106
2,223 views
The volume of an atom is determined by the size of its electron ______ (5 letters).
My answer: shell
5 answers
asked by
TigerLily
1,795 views
identify the mass number and atomic number of a chlorine atom that has 17 protons and 18 neutrons?
5 answers
asked by
monek
4,163 views
Elemental chlorine exists as a diatomic molecule Cl2.
Chlorine atoms exist in two different isotopes 35Cl and 37Cl. In the mass
4 answers
asked by
Anonymous
1,382 views
Here is the problem
A typical atom has a diameter of about 1.0 X 10^-10m. What it is in inches? How many atoms are there along a
3 answers
asked by
ZneedHeLP
2,226 views
What element has 7 Valence Electron and 3 energy levels?
4 answers
asked by
ineedhelp
2,869 views
what mass of protons would be required to just neutralize the charge of 1.0g of electrons?
how do I answer this? You know the
5 answers
asked by
Chris
7,037 views
if an atom has 17 electrons and its mass number is 35, calculate the following: number of protons, atomic number, and number of
4 answers
asked by
Sam
3,672 views
If a oxygen ion has 8 proton and 6 electrons what is the charg coulombs
4 answers
asked by
Lizwi
1,517 views
The Li2+ ion is hydrogenic and has a Lyman series at 740747 cm-1, 877924 cm-1, 925933 cm-1,and beyond. Show that the energy
5 answers
asked by
John
3,090 views
How many total atoms in (NH4)2cro4
4 answers
asked by
Telayvion
3,031 views
Each water molecule is made up of two hydrogen atoms and one _______ atom.
4 answers
asked by
Olivia
1,731 views
Alpha particle tracks through gases and thin metal foils show few deflections. What does this tell us about the atom?
4 answers
asked by
Martin
1,856 views
Describe why atoms of bromine, Br, are so reactive. To which family does bromine belong.
4 answers
asked by
Jameisha
1,916 views
An electron in a certain atom is in the n = 2 quantum level. List the possible
values of (cursive L). And for each value of
4 answers
asked by
John
3,181 views
What is the atomic number of oxygen?
41 answers
asked by
?
53 views
Which element would have a full outer shell of electrons if it gained three electrons?
boron lithium nitrogen argon THIS ONE
7 answers
asked by
ENNA
4,769 views
1. An atom has 3 protons, 4 neutrons, and 3 electrons. Use the periodic table to determine which atom would have similar
7 answers
asked by
Naruto's Ramen
7,092 views
a) How many moles of atoms are in 7.00 g of 13C?
Answer "0.538" mol 13C b) Based on your answer in Part A, calculate the number
5 answers
asked by
katie
11,844 views
Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron
5 answers
asked by
Kim
16,404 views
A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.30 nm. It then gives off a photon having a
6 answers
asked by
Anonymous
24,879 views
iridium has two isotopes. with mass numbers 191 and 193, and its average relative atomic mass is 192.23.calculate the relative
5 answers
asked by
daanyaal
9,880 views
According to the quantum-mechanical model for the hydrogen atom, which of the following transitions would produce light with
4 answers
asked by
Sue
12,835 views
How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute.
This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am
5 answers
asked by
Monique
7,958 views
Which neutral atoms have the following electron configurations in either a ground state or excited state? Enter the name or
5 answers
asked by
Jordan
6,644 views
Given the shell model of the atom, suggest a possible reason that Lewis proposed a maximum of two electrons for hydrogen and a
5 answers
asked by
Anonymous
3,754 views
Determine which H atom transition(iinitital, nfinal) was responsible for the absorption of a photon with a frequency of 4.57 x
4 answers
asked by
Jiszka
2,456 views
What is electron configuration of Bi5+?
5 answers
asked by
Anonymous
5,972 views
A sample of propane(c3h8)has 3.84x10^24 H atoms.
a) how many carbon atoms does the sample contain? b) what is the total mass of
7 answers
asked by
Jessica
9,147 views
How many electrons and how many protons are in the ion Cr6+?
5 answers
asked by
Jenna
5,105 views
The charge and identity of an ion with 16 protons, 18 electrons and 17 neutrons would be?
4 answers
asked by
Kim
5,819 views
An atom of gold has a mass of approximately 3.25×10^-22 grams. What is the mass of 4000 atoms of gold? Express your answer in
4 answers
asked by
Jacob
3,485 views
The first principle energy level is called the:
A Principle one state B Ground state C Atomic state D Hund’s state B?
4 answers
asked by
Anonymous
2,772 views
Rank the following atoms in terms of decreasing atomic radius.
1. Na, N, O, Mg, F 2. F, O, N, Mg, Na 3. F, Mg, Na, O, N 4. Na,
5 answers
asked by
Bob
6,265 views
The diameters of four different atoms are shown below.
Atom A: 6.35 x 10^-7 Atom B: 1.80 x 10^-6 Atom C: 2.00 x 10^-7 Atom D:
10 answers
asked by
doge master
1,578 views
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