Which electron level has the highest energy?

The furthest out level from the nucleus

More than one element put together

What elements make up 96% of organic matter?

Carbon, Hydrogen, Nitrogen, Oxygen

What is a polar covalent bond?

Unequal sharing of electrons between the two elements

What is electronegativity?

The power of an atom to attract electrons in a covalent bond

What is a non-polar covalent bond?

A bond where e- are shared equally between 2 atoms

Why is neon unreactive?

it has a full outer shell of electrons

atoms of the same element with different numbers of neutrons

What are hydrogen bonds?

weak side bonds broken by water

Matter has mass and takes up space

What is the difference between a Polar vs Non-Polar Covalent Bond?

Polar= unequal attraction of electrons; Nonpolar=Equal Sharing of electrons

Why is an understanding of basic chemistry essential to learning biology?

Chem provides the foundation for understanding bio at the molecular level

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Basic Chemistry Quiz for Biology

36 termsStudBud Administration38 plays

SI instructor Basic Chemistry Lecture 1

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Questions 36

Answers

1
What type of bonds does table salt have?
polar covalent
nonpolar covalent
metallic
ionic
2
What is the most abundant element in the human body?
Oxygen
Carbon
Nitrogen
Sodium
3
Which electron level has the highest energy?
The restricted level
The closest level to the nucleus
The middle level
The furthest out level from the nucleus
4
What is a compound?
Homogeneous
More than one atom put together
The total number of atoms in a formula
More than one element put together
5
What occurs in Ionic bonds
E- are shared
E- are transferred
They always loose e-
Nothing
6
When chlorine gains an electron from sodium, chlorine becomes a ...
negative ion
positive ion
7
What two subatomic particles make up the atomic mass?
Neutrons and Electrons
Protons and Neutrons
Nucleus and Electrons
Protons and Eletrons
8
What elements make up 96% of organic matter?
Carbon, Hydrogen, Phosphorus, Nitrogen
Carbon, Hydrogen, Nitrogen, Oxygen
Sulfer, Nitrogen, Hydrogen, Oxygen
Nitrogen, Selenium, Hydrogen, Sulfer
9
Which are isotopes?
Carbon-12 and Carbon-13
Magnesium-25 and Sodium-23
Lithium-6 and Lithium-6
10
What is the valence electron shell?
The Outermost Shell
The Innermost Shell
Any Shell Between The Innermost And Outermost Shell
11
What is an anion?
a neutral atom
a type of onion
a negatively charged atom
a positively charged atom
12
Which element has the highest electronegativity?
Barium
Oxygen
Silicon
Francium
13
What is a polar covalent bond?
The more electronegative element steals the electrons
Unequal sharing of electrons between the two elements
Equal sharing of electrons between the two elements
The less electronegative element steals the electrons
14
What is electronegativity?
The power of an atom to attract protons in a covalent bond
The power of an atom to attract electrons in a covalent bond
The power of ben to drop and smash innocent crucibles
The power of an atom to repel electrons in a covalent bond.
15
What is a non-polar covalent bond?
A bond where e- are shared equally between 2 atoms
A double bond between 2 electronegative atoms
A very electronegative bond
A weak chem. bond formed with a hydrogen atom
16
Which element has the highest electronegativity?
Cl
I
Br
17
What are radioactive isotopes currently used for in medicine?
Imaging tumors
Healing broken bones
Finding broken bones
Killing cells
18
What are the properties and characteristics of Covalent nonpolar bonding?
Sea of electrons
Equal sharing of electrons
does not dissolve in water
Not yet defined
19
What causes hydrogen bonds?
Partial charges on a molecule
The lack of charge
Positive charge on a Hydrogen
Negative charge on a Hydrogen
20
How many electrons does the element Neon have?
20.18
10
10.18
30.18
21
Which subatomic particle is positive?
neutron
proton
electron
quark
22
Why is neon unreactive?
it has 10 protons
it has a full outer shell of electrons
it has 10 neutrons
the protons and electrons are equal
23
What are isotopes
mixtures
atoms of the same element with different numbers of protons
atoms of the same element with different numbers of neutrons
atoms with different masses
24
What are hydrogen bonds?
weak polypeptide bonds broken by water
strong end bonds broken by chemicals
weak side bonds broken by water
strong side bonds broken by chemcials
25
What type of deficiency causes goiter?
Iron
Selenium
Iodine
Nitrogen
26
what subatomic particles make up the atomic weight?
protons only
protons and neutrons
electrons and neutrons
protons and electrons
27
Which subatomic particle does not have a charge?
neutron
proton
electron
28
how many bonds can oxygen make?
3
4
1
2
29
When sodium becomes an ion, does it gain or lose electrons?
Gains-becomes a cation.
Loses-becomes a cation.
Gains-becomes an anion.
Loses-becomes an anion
30
What is matter?
Matter has mass and takes up space
matter is liquid
matter is invisible
Matter doesnt take up space
31
What side of the periodic table has the highest electronegativity?
Bottom left
Top right
Top left
Bottom right
32
What subatomic particle is negative
Neutrons
Electrons
Neucleus
Protons
33
What is a cation?
a neutral atom
a positively charged atom
a breed of cat
a negatively charged atom
34
What is the difference between a Polar vs Non-Polar Covalent Bond?
Polar= Equal attraction of electrons, Nonpolar=unequal Sharing of electrons
Polar= Equal attraction of electrons, Non-polar= Equal Sharing of electrons
Polar=unequal attraction of electrons Nonpolar=unequal Sharing of electrons
Polar= unequal attraction of electrons; Nonpolar=Equal Sharing of electrons
35
What is the solute in saltwater?
salt
Water
salt + water
Saltwater
36
Why is an understanding of basic chemistry essential to learning biology?
Chemistry is more basic to life than biology
All living things are made up of atoms
Chem explains how chemical reactions work
Chem provides the foundation for understanding bio at the molecular level

Basic Chemistry Quiz for Biology Flashcards | StudBud