What is the formula to find atomic mass

(isotope A x % of abundance) + (Isotope B * % of abundance)

What is Atomic Radius?

electron distance from the center of atom (nucleus)

Which is not true about Daltons theory

Atoms can't be split or divided

Ernest Rutherford created the gold foil experiment and discovered that atoms....

have a nucleus surrounded by electrons

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Chemistry Review

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Review for Chemistry final. Note: as a student, i don't know what is on the test so this is all based on what I believe is on the test.

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Questions 18

Answers

1
What is the chemical formula for Sodium Sulfate
Na2 (So3)-2
Na(So3)2-2
Na2 (SO4)-2
K2(NH4)
2
Ionization energy is
ions that do absolutely nothing
energy not needed to steal energy
energy needed to steal energy
3
As you move down the periodic table, the atomic radius starts to...
Decrease
stay the same
Increase
4
What is an anion?
A negatively charged ion
A positively charged ion
A neutral Ion
something that doesn't exist
5
Electronegativity ______ when it goes across the periodic table
Decreases
Stays the Same
Increases
6
What is the formula to find atomic mass
(isotope B x % of abundance) - (Isotope A * % of abundance)
(isotope A x % of abundance) + (Isotope B * % of abundance)
(isotope A x % of abundance) X (Isotope B * % of abundance)
7
What is the full name for NF₃
Nathan Feuerstein (Rapper)
Nitrogen biFloruide
dinitrogen monoxide
Nitrogen trifloruide
8
Which female scientist helped discover radioactivity?
Marie Curie
Mary Anning
Eve Curie
Kim Kardashian
9
What is the Orbital Diagram for Chlorine
1S22S22P5
1S2S2P3S3P
1S22S22S63S23p5
1S22S22P63S23p5
10
What is Atomic Radius?
the size of the electron
electron distance from the mitochondria
electron distance from the center of atom (nucleus)
11
Which is not true about Daltons theory
Atoms can't be split or divided
Atoms cant be created or destroyed
Matter is composed of atoms
12
electronegativity energy increases when it goes _______ the periodic table
down
across
13
Atomic number equals the number of...
Protons
Electrons
Neutrons
Atomic Mass
14
Ernest Rutherford created the gold foil experiment and discovered that atoms....
have electrons in the nucleus
have a positively charged nucleus
have a negatively charged nucleaus
have a nucleus surrounded by electrons
15
what is the atomic mass for HN
16
14
15
21
16
electrons are
neutral charged particles
negatively charged particles
positively charged particles
fake particles created to trick people
17
What is Cl₂+2NaBr->2NaCl+Br₂ An example of?
Double Replacement
Synthesis
Single Replacement
Decomposition
18
What is the name for the covalent compound P₄
petraphosphorus
biphosphourus
monophosphorus
tetraphosphorus

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