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UNIT I_INTRODUCTION TO ZOOLOGY

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

anything that occupies space and has mass

Back (Answer)

MATTER

#2
Front (Question)

is a pure chemical substance of one type of atom that can’t be divided into simpler substance

Back (Answer)

ELEMENT

#3
Front (Question)

smallest unit of matter

Back (Answer)

ATOM

#4
Front (Question)

What are the three subatomic particles

Back (Answer)

• Protons (positively charged particles) • Neutrons (no charge or neutral) • Electrons (negatively charged particles)

#5
Front (Question)

What subatomic particle/s composes the dense nucleus of an atom?

Back (Answer)

• Protons 2. Neutrons

#6
Front (Question)

What subatomic particle/s surrounds the nucleus of an atom

Back (Answer)

Electron

#7
Front (Question)

an abbreviation or shortened version of the name of a chemical element

Back (Answer)

Chemical symbol

#8
Front (Question)

How is chemical symbol written?

Back (Answer)

• Left superscript (mass number) 2. Subscript (atomic number)

#9
Front (Question)

represents the number of protons of a particular atom

Back (Answer)

Atomic number

#10
Front (Question)

represents the number of protons plus the number of neutrons of an atom in a given element

Back (Answer)

Mass number

#11
Front (Question)

atoms of the same element that have different mass numbers because of the differences in the number of their neutrons

Back (Answer)

Isotopes

#12
Front (Question)

In charged atoms, does atomic number represent the number of electrons?

Back (Answer)

No

#13
Front (Question)

The force of attraction that holds the atoms together

Back (Answer)

Chemical bond

#14
Front (Question)

What are the three types of chemical bond?

Back (Answer)

• Ionic bond • Covalent bond • Hydrogen bond

#15
Front (Question)

What are the two types of covalent bond?

Back (Answer)

• Nonpolar covalent bond 2. Polar covalent

#16
Front (Question)

What chemical bond involves sharing of electrons between atoms involved in the chemical bonding

Back (Answer)

Covalent bond

#17
Front (Question)

What chemical bond involves transfer of electrons from one atom to another atom?

Back (Answer)

Ionic bond

#18
Front (Question)

What covalent bond involves equal sharing of electrons?

Back (Answer)

Nonpolar covalent bond

#19
Front (Question)

What covalent bond involves unequal sharing of electrons?

Back (Answer)

Polar covalent bond

#20
Front (Question)

attractive interaction of a hydrogen atom with an electronegative atom (nitrogen, oxugen, fluorine)

Back (Answer)

Hydrogen bond

#21
Front (Question)

What are the four inorganic substances essential to life?

Back (Answer)

• Water • Carbon dioxide • Oxygen • Acids, bases, and salts

#22
Front (Question)

It is a universal solvent, highly polar, exhibits surface tension, and densest at 4 degrees Celsius

Back (Answer)

Water

#23
Front (Question)

It is about 0.033% in the air

Back (Answer)

Carbon dioxide

#24
Front (Question)

It is one of the raw materials of photosynthesis and is important in warming the eath’s atmosphere

Back (Answer)

Carbon dioxide