Conceptual Physics-Atom Minni Unit Flashcards Preview

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Flashcards in Conceptual Physics-Atom Minni Unit Deck (38):
0

What are the smallest particles that still have all the properties of an element?

Atoms

1

What/Where are the parts of and atom?

Protons- in nucleus
Neutrons- in nucleus
Electrons- in energy cloud

2

What sub-atomic particle moves easily?

Electron

3

What are the charges of each sub-atomic particle?

Proton- positive
Neutron- neutral
Electron- negative

4

How does an atom become charged?

If it gains electrons- it is negatively charged
If it loses electrons- it is positively charged

5

Why are certain objects attracted to or repelled from each other?

This is caused by the objects' respective charges: opposites attract; like charges repel.

6

Why can't protons and neutrons move from atom to atom?

They are tightly bound in the nucleus and they define the element of the atom.

7

A negative atom has more blank than blank.

Electrons, protons

8

A positive atom has more blank than blank.

Protons, electrons

9

If a negative object is repelled from a surface, the surface has what charge?

Negative

11

Two objects are attracted to each other. One is positive. Therefore...

The other object is negative

12

What makes up all matter?

atoms

13

What particles make up atoms?

protons, neutrons and electrons

14

Which sub-atomic particles have charges?

protons (positive)
electrons (negative)

15

Where can electrons be found

in the energy cloud of the atom (flying/orbiting the atom, or moving to another atom)

16

charged particles create what kind of force with other charged particles?

electrostatic

17

neutral charges are blank by other charges.

attracted

18

atoms and molecules are held together by blank.

electrostatic force

19

What are the smallest particles that still have all the properties of an element?

atoms

20

How can an object become electrically charged?

by friction
by conduction
by polarization/induction

21

atom

smallest particle that still has all the properties of a certain element

22

sub-atomic particle

makes up an atom; does not have the qualities of one particular element

23

neutron

sub-atomic particle; neutral (no) charge; located in the nucleus of an atom; does not easily move between atoms

24

electron

sub-atomic particle; negative charge; located in the energy cloud of an atom; easily moves from atom to atom

25

proton

sub-atomic particle; positive charge; located in the nucleus of atom; does not easily move between atoms

26

electrostatic

static electricity, or stationary electric charges, or stationary build up/lack of electrons in an object

27

nucleus

center of an atom where most of the mass (protons and neutrons) is located

28

net charge

overall (total) amount of charges, either positive, negative, or neutral (the later meaning it has no net charge)

29

conduction

when one object touches another (when discussing electrostatic matters, it means the transfer of electrons when two objects touch).

30

attraction

when two or more objects (are compelled to) move towards each other (like when opposite charges are placed next to each other)

31

repulsion

when two or more objects (are compelled to) move away from each other (like when like charges are placed next to each other)

32

element

basic substance that can't be simplified

33

melecules

two or more atoms that are chemically joined together

34

compound

atoms bonded together that contain at least tow different elements

35

periodic table of elements

a table in which the chemical elements are arranged in order

36

examples of elements

gold, silver, carbon, lead, oxygen, hydrogen

37

examples of molecules

O2 (oxygen), H2 (hydrogen), CO2 (carbon dioxide), H2O (water), N2 (nitrogen), Cl2 (chlorine), NO (Nitrogen Oxide), NO2 (Nitrogen dioxide)

38

examples of compounds

CO2 (carbon dioxide), H2O (water), NO (Nitrogen Oxide), NO2 (Nitrogen dioxide), CO2 (carbon dioxide)

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