Elements
Compunds
Mixtures
Periodic table
Atomic bonds
100

What number tells you the number of protons and electrons

Atomic number

100

What is a compound

two substances that are chemically bonded

100

A mixture is a combination of two or more substances mixed but not ________ combined.


Chemicaly

100

What number tells you the number of protons and electrons?

Atomic number

100

What holds atomic bonds together

Chemical bonds

200

What is the name of element number 1?

Hydrogen

200

Do elements keep their original properties when they turn into compounds

No

200

In a mixture, substances can be separated by __________ means

Physicaly

200

How do you figure out the number of neutrons

Subtract the atomic number from the atomic mass

200

What causes atomic bonds to break

Input of sufficient energy

300

What is the name of the element with the elemental symbol Zr?

Zirconium

300

Why is a compound considered a free substance

Because its made of only one particle

300

What is a heterogenous mixture?

What is a mixture that does not appear to be the same throughout

300

How do you find an elements atomic mass

Add the number of neutrons and protons together

300

What type of bond is the weakest

ionic bond

400

What element has 42 as its atomic number?

Molybdenum

400

How can a compound be separated

chemical heat or electricity

400

What is a homogenous mixture?

What is a mixture that appears to be the same throughout

400

How many liquids are on the periodic table

2

400
What is the most common type of atomic bonds

Covalent bonds

500

What element has the element symbol yb

ytterbium

500

What property affects the ratio in which a compound is formed

The mass of elements

500

A type of mixture is where particles are mixed together but not dissolved (toothpaste) is called a ?

Colloid

500

What does the term 'valence electrons' mean? (2 things)

number of electrons on outermost shell, tells how reactive an element is

500

Which is stronger polar or non polar

Polar bond is stronger

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