Which subatomic particle has a positive charge?

Question 1 options:

all particles


neutron (n0)


proton (p+)


electron (e-)

Question 2 (2 points)
What information does the atomic mass of an element provide?

Question 2 options:

the difference between the number of protons and electrons (p - e)


the number of isotopes


the sum of electrons and protons in an atom (e + p)


the number of protons and neutrons in an atom (p + n)

Question 3 (2 points)
What is the atomic number of an atom?

Question 3 options:

the number protons and neutrons


the number of protons


the number of neutrons


the number of electrons and neutrons

Question 4 (2 points)
What is H2O (water) classified as?

Question 4 options:

a diatomic molecule


an atom


an element


a molecule

Question 5 (2 points)
Which property is a physical property?

Question 5 options:

easy to digest


becomes moldy quickly


does not burn


malleable (the quality of something that can be shaped into something else without breaking )

Question 6 (2 points)
What state of matter has a defined volume but undefined shape?

Question 6 options:

solids and liquids


liquids


liquids and gases


gases

Question 7 (2 points)
Which statement best describes the difference between a physical change and a chemical change?

Question 7 options:

A chemical change does not result in a new substance being formed, whereas a physical change does.


A chemical change results in a new element being formed, and a physical change results in a new compound being formed.


A physical change produces a new element, and a chemical change results in a bond breaking between atoms.


A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.

Question 8 (2 points)
Where are nonmetals located in the periodic table?



Question 8 options:

in the middle


along the bottom


along the upper left side


along the upper right side

Question 9 (2 points)
The elements fluorine (F), chlorine (Cl), and Iodine are all part of the same ____________________ on the periodic table.



Question 9 options:

period


group

Question 10 (2 points)
How are elements arranged on the periodic table?

Question 10 options:

atomic mass (# of protons and neutrons)


atomic number (# of protons)


density


boiling point




Help please ill give 100 points