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Science Unit 1 Vocab

Total questions: 27

Worksheet time: 14mins

Name
Class
Date
1.

Valence

a)

Relating to or denoting electrons involved or available for chemical bond formation

b)

Outer shell of electron that is associated with an atom, and that can participate in the formation of a chemical bond

c)

Denoting electrons involved or available for chemical bond formation

d)

Relating to electrons involved or available for chemical bond formation

2.

Atom

a)

Substance with atoms that are all alike. Each more than one hundred 

substances that cannot be chemically broken down into simpler substances

b)

Smallest particle of an element that still retains the properties of that element

c)

Smallest particle of an element

d)

Smallest particle of an element that still retains the properties of that element

3.

Proton

a)

Positively charged subatomic particle inside the nucleus of an atom

b)

Neutral subatomic particle inside the nucleus of an atom

c)

Negatively charged subatomic particle surrounding the center of an atom

4.

Element

a)

Substance with atoms that are all alike. Each more than one hundred 

substances

b)

Cannot be chemically broken down into simpler substances

c)

Substance with atoms that are all alike.

d)

Substance with atoms that are all alike. Each more than one hundred 

substances that cannot be chemically broken down into simpler substances

5.

Electron

a)

Positively charged subatomic particle inside the nucleus of an atom

b)

Neutral subatomic particle inside the nucleus of an atom

c)

Negatively charged subatomic particle surrounding the center of an atom

6.

Electron cloud

a)

Area around the nucleus of an atom where the atoms electrons are found

b)

Area around the neutrons of an atom where the atoms electrons are found

c)

Area around the protons of an atom where the atoms electrons are found

7.

Neutron

a)

Positively charged subatomic particle inside the nucleus of an atom

b)

Neutral subatomic particle inside the nucleus of an atom

c)

Negatively charged subatomic particle surrounding the center of an atom

8.

Valence Electron

a)

Relating to or denoting electrons involved or available for chemical bond formation

b)

Outer shell of electron that is associated with an atom, and that can participate in the formation of a chemical bond

c)

Denoting electrons involved or available for chemical bond formation

d)

Relating to electrons involved or available for chemical bond formation

9.

Ion

a)

Positively or negatively charged particle that has either more or fewer electrons than protons

b)

Atoms of the same element that have different numbers of neutrons

c)

Positively charged particle that has either more or fewer electrons than protons

d)

Negatively charged particle that has either more or fewer electrons than protons

10.

Isotope

a)

Positively or negatively charged particle that has either more or fewer electrons than protons

b)

Atoms of the same element that have different numbers of neutrons

c)

Positively charged particle that has either more or fewer electrons than protons

d)

Negatively charged particle that has either more or fewer electrons than protons

11.

Chemical Symbol

a)

A chemical symbol is a notation of one or two letters representing a chemical element

b)

Number of protons in an atom's nucleus 

c)

The mass of an atom of a chemical element express in atomic mass units It is equal to the number of protons and neutrons in the atom

12.

Atomic Mass

a)

A chemical symbol is a notation of one or two letters representing a chemical element

b)

Number of protons in an atom's nucleus 

c)

The mass of an atom of a chemical element express in atomic mass units It is equal to the number of protons and neutrons in the atom

13.

Atomic Mass

a)

A chemical symbol is a notation of one or two letters representing a chemical element

b)

Number of protons in an atom's nucleus 

c)

The mass of an atom of a chemical element express in atomic mass units It is equal to the number of protons and neutrons in the atom

14.

Atomic Number 

a)

A chemical symbol is a notation of one or two letters representing a chemical element

b)

Number of protons in an atom's nucleus 

c)

The mass of an atom of a chemical element express in atomic mass units It is equal to the number of protons and neutrons in the atom

15.

Reactivity 

a)

Attraction shared between atoms when they share electrons

b)

Attraction formed between oppositely charged ions in an ionic compound

c)

A path described by one body in its revolution around another

16.

Ionic Bond 

a)

Attraction shared between atoms when they share electrons

b)

Attraction formed between oppositely charged ions in an ionic compound

c)

A path described by one body in its revolution around another

17.

Covalent Bond 

a)

Attraction shared between atoms when they share electrons

b)

Attraction formed between oppositely charged ions in an ionic compound

c)

A path described by one body in its revolution around another

18.

Compound

a)

Attraction shared between atoms when they share electrons

b)

Attraction formed between oppositely charged ions in an ionic compound

c)

A path described by one body in its revolution around another

d)

Substance formed by two or more elements in which the exact combination and proportion of elements is always the same

19.

Molecules

a)

Positively or negatively charged particle that has either more or fewer electrons than protons

b)

A neutral particle that forms as a result of electron sharing

c)

Substance formed by two or more elements in which the exact combination and proportion of elements is always the same

20.

Molecules

a)

Positively or negatively charged particle that has either more or fewer electrons than protons

b)

A neutral particle that forms as a result of electron sharing

c)

Substance formed by two or more elements in which the exact combination and proportion of elements is always the same

21.

Periodic Table

a)

Organized list of all known elements that are arranged by increasing atomic numbers and changes in chemical and physical properties

b)

A chemical rule of thumb that reflects observation that atoms of a main group elements tend to combine in such a way that each atom has 8 electrons in its valence shell

c)

A drawing of a molecule that illustrates the connectivity of the compound as well as identifying the lone pairs of electrons available for bonding

d)

Shows that electrons in atoms are in orbits of differing energy around the nucleus

22.

Rutherford-Bohr Model

a)

Organized list of all known elements that are arranged by increasing atomic numbers and changes in chemical and physical properties

b)

A chemical rule of thumb that reflects observation that atoms of a main group elements tend to combine in such a way that each atom has 8 electrons in its valence shell

c)

A drawing of a molecule that illustrates the connectivity of the compound as well as identifying the lone pairs of electrons available for bonding

d)

Shows that electrons in atoms are in orbits of differing energy around the nucleus

23.

Ocet Rule

a)

Organized list of all known elements that are arranged by increasing atomic numbers and changes in chemical and physical properties

b)

A chemical rule of thumb that reflects observation that atoms of a main group elements tend to combine in such a way that each atom has 8 electrons in its valence shell

c)

A drawing of a molecule that illustrates the connectivity of the compound as well as identifying the lone pairs of electrons available for bonding

d)

Shows that electrons in atoms are in orbits of differing energy around the nucleus

24.

Lewis Dot Diagram 

a)

Organized list of all known elements that are arranged by increasing atomic numbers and changes in chemical and physical properties

b)

A chemical rule of thumb that reflects observation that atoms of a main group elements tend to combine in such a way that each atom has 8 electrons in its valence shell

c)

A drawing of a molecule that illustrates the connectivity of the compound as well as identifying the lone pairs of electrons available for bonding

d)

Shows that electrons in atoms are in orbits of differing energy around the nucleus

25.

Family/Group

a)

On the periodic table, these are the horizontal rows

b)

On the periodic table, these are the vertical columns

26.

Period

a)

On the periodic table, these are the horizontal rows

b)

On the periodic table, these are the vertical columns

27.

Bounus Question!!!!!!!!

Who was the first woman to win a Nobel Prize?

a)

Marie Curie

b)

Esther Duflo

c)

Sally Right

d)

Donna Strickland