How does gravity work?

attraction gets stronger with more mass and small distances

What condition initiates or begins star formation?

gravity and tiny differences in the clumping of matter

Period numbers (1-7) represent what?

How many electron orbits or shells contained in the elements' atoms

What are valence electrons?

electrons in the outer most orbit

In the periodic table, GROUPS are the ...

vertical columns, numbered 1-18

the amount of matter in something

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The Periodic Table of Elements

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Questions 21

Answers

1
How does gravity work?
attraction gets stronger with greater distance and less mass
attraction gets weaker with less distance and more mass
attraction gets weaker with more mass and small distances
attraction gets stronger with more mass and small distances
2
What are the MOST reactive of all metals? Because they have the lowest amount of Valence Electrons?
Transition Metals
Alkali Metals
Alkaline Earth Metals
Noble Gases
3
What condition initiates or begins star formation?
gravity and tiny differences in the clumping of matter
matter, gravity, and electromagnetism
strong nuclear force
gravity and attractive forces
4
Which two elements have the same number of Valence Electrons?
Lithium (Li) and Beryllium (Be)
Xenon (Xe) and Iodine (I)
Thorium (Th) and Calcium (Ca)
Silicon (Si) and Carbon (C)
5
Period numbers (1-7) represent what?
The number of protons
the number of valence electrons
the number of electrons
How many electron orbits or shells contained in the elements' atoms
6
How many valence electrons does Lead (Pb) have? and in what orbit?
4 valence, orbit 6
3 valence, orbit 7
4 valence, orbit 5
6 valence, orbit 4
7
What are valence electrons?
electrons in the outer most orbit
electrons in the inner most orbit
electrons without orbits
electrons in middle orbits
8
The number of neutrons in an atom can be found by doing what formula?
Atomic mass - atomic number =
Atomic number - atomic mass =
E=MC^2
f=g((m1*M2)/d^2))
9
In the periodic table, GROUPS are the ...
horizontal rows, numbered 1-7
vertical columns, numbered 1-18
elements that start with G - for "group"
diagonal rows
10
The periodic table is a table that organizes the ____________
Elements
earth, wind, water, and fire!!
lunch and dinner
Compounds
11
The atomic number represents an elements number of?
Neutrons
Nuclei
Electrons
Protons
12
Group numbers, 1-18, or 1A-8A - represent or give clues to an element's what?
number of protons
number of electrons
which number orbit its valence electrons are in
number of valence electrons
13
Which elements are NOT reactive at all because their outer electron orbits are filled?
Transition Metals
Alkali Metals
Noble Gases
Alkaline Earth Metals
14
What force is responsible for Protons and Neutrons being held together in the nucleus?
Gravity
electromagnetism
weak nuclear force
strong nuclear force
15
Which two elements have the same number of ELECTRON ORBITS?
Manganese (Mn) and Cesium (Cs)
Lithium (Li) and Sodium (Na)
Potassium (K) and Calcium (Ca)
Silver (Ag) and Copper (Cu)
16
What causes new elements to form after the Big Bang and the age of just Hydrogen and Helium?
gravity
Planets
Stars
another big bang
17
The number of electrons in a NEUTRAL atom of an element is ...
same as the atomic mass
same as the number of neutrons
same as the number of protons
same as the number of valence electrons
18
What force is responsible for electrons being attracted to the nucleus?
gravity
electromagnetism
strong nuclear force
weak nuclear force
19
In the periodic table, PERIODS are the ...
horizontal rows, numbered 1-7
Vertical columns, numbered 1-18
vertical rows, numbered 1b-7b
diagonal stripes
20
Ag - Silver belongs to which period and which group?
period 7, group 11
period 5, group 11 or 1B
period 3, group 1
period 5, group 5
21
What is mass?
the amount of empty space in something
gravity
the weight
the amount of matter in something

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