TA 19 The a) An atom with 3 protons and 4 neutrong. Jithium
b) An atorn with 2 protons and 4 neutrons: helium
9 An atom with 4 protons and 4 neutrony. _berllium
3. Manipulate the simulation to discover which particles affect the charge of an ato
a) Bill in the blanks below to show your results:
Neutral atoms have
protons and electrons.
Positive ions have
protons than electrons,
Negative ions have
protons than electrons.
b) Develop a relationship (in the form of a single sentence or equation) that can
charge based on the number and types of particle.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.