Chem 11 W1 - Grade 10 Revision

Which state of matter has (almost) no attraction force between particles?

• Solid
• Liquid
• Gas
• Plasma
• Magnets

From the information in this photo, how many neutrons does the hydrogen isotope "tritium" have?

Chlorine has 2 common isotopes. Chlorine-35 has an abundance of 75%. Chlorine-37 is 25%. Calculate the relative atomic mass of chlorine to 1 decimal point.

Elements are arranged on the periodic table by ________ number.

• Atomic
• Mass
• Elemental
• Electron
• Random

What happens to reactivity of alkali metals when you go down the periodic table?

• It decreases
• It increases
• It stays the same
• Impossible to know

What happens to reactivity of alkali metals when you go down the periodic table?

• It decreases
• It increases
• It stays the same
• Impossible to know

Which element has 8 electrons in its outer shell?

• Bromine
• Lithium
• Nitrogen
• Oxygen
• Carbon

When calcium binds with chlorine, how many electrons will calcium give away?

• 1
• 2
• 3
• All
• None

Sodium has a mass of approximately 23g/mol. Chlorine is approximately 35.5g/mol. What is the formula mass of NaCl?

Carbon has a mass of about 12g/mol. Hydrogen is 1g/mol. What is the percent composition of carbon in C4H10? Round your answer to the nearest whole number.