p.sci test

H₂O

How many types of elements are in this compound?

• 1

• 2

• 3

• 4

What state of matter is represented in the picture above?

• solid

• liquid

• gas

What state of matter is represented in this picture?

• solid

• liquid

• gas

What is the atomic mass of Arsenic?

• 33

• 107

• 75

How many neutrons does Chlorine have?

• 18

• 17

• 35

• 52

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

A charged atom

• Ion
• Isotope
• Electron Cloud
• Quark

Atoms of the same element with a different number of neutrons

• Ion
• Gluons
• Isotope
• Quarks

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

What is at the center of every atom?

• An electron

• A compound

• A molecule

• A nucleus