STAAR Practice

The highlighted portion of the equation is a:

• Reactants

• Subscript

• Yield

• Coefficient

Tags

NGSS.MS-PS1-1

Electrons in the outermost shell of the electron cloud. They determine reactivity.

• Electron Cloud

• Electron

• Valence Electron

• Isotope

Based on the information from the diagram, this element is:

• Nitrogen

• Hydrogen

• Carbon

• Helium

Tags

NGSS.MS-PS1-1

Which characteristics of ELECTRONS correctly complete the chart?

• Neutral/ Nucleus/ 1

• Positive/ Nucleus/ 1

• Negative/ Electron Cloud/ 0.0005

Tags

NGSS.MS-PS1-1

NGSS.MS-PS2-3

Positively charged particles in the nucleus of an atom.

• Protons

• Neutrons

• Electrons

• Isotope

Tags

NGSS.MS-PS1-1

Using the diagram, how many ELECTRONS does this atom have?

• 4

• 5

• 6

• 7

Tags

NGSS.MS-PS1-1

What determines an element's identity?

• Number of Protons

• Number of Neutrons

• Number of Electrons

• Number of Valence Electrons

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the primary gas found in Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen