8th grade science week 9 dca which characteristic of an atom determines which element it is?...
TRANSCRIPT
8th Grade Science Week 9 DCA Which characteristic of an atom determines
which element it is? A. Nucleus C. Proton #B. Mass # D. Electron Charge
• Which characteristic of an atom determines which element it is?
• Nucleus C. Proton #
• Mass # D. Electron Charge
Which element has a mass most similar to Copper?a. Zincb. Hydrogenc. Silverd. Gold
• Which element has a mass most similar to Copper?
a. Zincb. Hydrogenc. Silverd. Gold
Which elements are most similar?
a. Phosphorus and Iodineb. Potassium and Nitrogenc. Sodium and Heliumd. Copper and Silver
• Which elements are most similar?
a. Phosphorus and Iodineb. Potassium and Nitrogenc. Sodium and Heliumd. Copper and Silver
Which elements share similar chemical properties?a. Carbon and Nitrogen b. Lithium and Berylliumc. Iron and Osmium d. Phosphorus and Iodine
8th Grade Science - Week 9 DCA What atom has about one-third the
mass of a Mg atom?
8th Grade Science -Week9 DCA Identify this element:
8th Grade Science –Week 9 DCA
Which group would elements in Group 2 like to bond with?
• Which of these elements is usually in
• the form of a gas?
• A. Lead
• B. Neon
• C. Carbon
• D. Strontium
• Which of these elements is usually in
• the form of a gas?
• A. Lead
• B. Neon
• C. Carbon
• D. Strontium
8th Grade Science –Week 9 DCA
If Potassium gives an electron to chlorine for chemical bonding what would be its overall charge?
A. K+1 B. K-1
8th Grade Science –Week 9 DCA
To find the atomic mass of any element which two subatomic particles do you add together?
8th Grade Science –Week 9 DCA Which Elements below have similar properties?
A. K, Ca, Sc, TiB. Na, K, Rb, CsC. Mg, Al, SiD. G, Ge, As, Se
8th Grade Science –Week 9 DCA
Which column of elements do not react naturally with other elements?
• Which metal has properties that are the• most similar to iron?
• A. Sodium• B. Mercury• C. Aluminum• D. Manganese
8th Grade Science –Week 9 DCA
• Which metal has properties that are the• most similar to iron?
• A. Sodium• B. Mercury• C. Aluminum• D. Manganese
8th Grade Science –Week 9 DCA
• Helium and neon are grouped together
• on the Periodic Table because they —
• A. are gases.
• B. are elements.
• C. have the same mass.
• D. have the same number of protons.
8th Grade Science –Week 9 DCA
• Helium and neon are grouped together
• on the Periodic Table because they —
• A. are gases.
• B. are elements.
• C. have the same mass.
• D. have the same number of protons.
8th Grade Science –Week 9 DCA
• Which characteristic of an element bestexplains how it behaves chemically?
• A. Atomic mass• B. Atomic number• C. Group classification• D. Period classification
8th Grade Science –Week 9 DCA
Which characteristic of an element bestexplains how it behaves chemically?
A. Atomic massB. Atomic numberC. Group classificationD. Period classification
8th Grade Science –Week 9 DCA
• Which element does not react naturally• with other elements?
• A. Lead• B. Neon• C. Oxygen• D. Potassium
8th Grade Science –Week 9 DCA
• Which element does not react naturallywith other elements?
• A. Lead• B. Neon• C. Oxygen• D. Potassium
8th Grade Science –Week 9 DCA
