FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT UNIT

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FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT UNIT

1 VOCAB EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -15 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: Subatomic particle

Answer:

Particle smaller than atoms.

Question 2: Nucleus

Answer:

The center of an object

Question 3: Molecule

Answer:

Two or more atoms held together by a chemical bond.

Question 4: Model

Answer:

A pattern,plan,representation

Question 5: Electron Shell

Answer:

An orbit followed by electrons around an atom's nucleus.

Question 6: Matter

Answer:

Something that occupies space.

Question 7: Electron

Answer:

A subatomic particle that has a negative charge.

Question 8: Bhor Model

Answer:

This model of the atom depicts positively charged nucleus surrounded by electrons that travel in a circular motion.

Question 9: Neutron

Answer:

A subatomic particle that has no charge.

Question 10: Lewis Structure

Answer:

Lewis structures are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Question 11: Proton

Answer:

A subatomic particle that has a positive charge.

Question 12: Atom

Answer:

The smallest unit of everything

Question 13: Valance Electron

Answer:

An electron that is associated with an atom, and that can participate in the formation of a chemical bond.

Question 14: Atomic symbol/nuclear symbol/Chemical Symbol

Answer:

Standard nuclear notation shows the chemical symbol, the mass number and the atomic number of the.

Question 15: Atomic number

Answer:

the number of protons found in the nucleus of an atom.