2.1 The Nature of Matter p34 Q: What three subatomic particles make up atoms? A: The subatomic particles that make up atoms are protons, neutrons, and.

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2.1 The Nature of Matter p34 Q: What three subatomic particles make up atoms? A: The subatomic particles that make up atoms are protons, neutrons, and electrons.

Atoms-basic unit of matter Nucleus-center of the atom Contains positive protons & neutral neutrons. Electron-negatively charged outside

Elements and Isotopes Q: How are all of the isotopes of an element similar? A: Because they have the same number of electrons, all isotopes of an element have the same chemical properties.

Element-pure substance, one type of atom Isotopes-same element, different # neutron Radioactive Isotopes-nuclei unstable & break down.

Chemical Compounds Q: In what way do compounds differ from their component elements? A: The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed. Compound-chemical combo of 2 elements ex: water

Chemical Bonds Q: What are the main types of chemical bonds? A: The main types of chemical bonds are ionic bonds and covalent bonds.

Ionic Bonds-1 or more electrons transfered Ions-+ and – charged atoms

Covalent Bonds-shared electrons Molecule-smallest unit of a compound Van der Waals Forces-attraction of oppositely charged regions of nearby molecules

WKBK pgs Read pg 16 Answer Questions 17-18

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