SECOND QUARTER PRE-ASSESSMENT

What does the flame test prove about the inner structure of atom?

• A. The atom has a nucleus

• B. The nucleus is positively charged.

• C. The electrons are found outside the nucleus.

• D. The electrons carry discreet or fixed energy.

What happens to the energy of an electron as it goes farther from the nucleus?

• A. Its energy increases.

• B. Its energy decreases.

• C. Its energy becomes fixed.

• D. Its energy does not change.

Copper chloride when heated emits blue light. What is the origin of this blue light?

• A. The nucleus radiates energy.

• B. The electron loses energy as it moves around the nucleus.

• C. The electron absorbs energy as it jumps to a higher energy level.

• D. An excited electron loses energy as it returns to a lower energy level.

Tags

NGSS.HS-PS4-3

Which of the following energy levels can accommodate a maximum of 18 electrons?

• A. 1st energy level

• B. 2nd energy level

• C. 3rd energy level

• D. 4th energy level

An atom with 32 electrons has ______ energy levels.

• A. 1

• A. 2

• C. 3

• D. 4

Tags

NGSS.HS-PS1-1

How many sub-levels are in L energy level?

• A. 1

• B. 2

• C. 3

• D. 4

How many electrons can the d orbital holds?

• A. 2

• B. 6

• C. 10

• D. 14

How many atomic orbitals are in p sublevel?

• A. 1

• B. 2

• C. 3

• D. 4

Which of the given atomic orbitals is of higher energy?

• A. 1s

• B. 2s

• C. 2p

• C. 3p

10. Which is the electron configuration of Oxygen (8e-)?

• A. 1s22s22p6

• B. 1s22s22p4

• C. 1s22s32p3

• D. 1s12s22p3

Tags

NGSS.HS-PS1-1